Trimod Besta side mount float level switch

  • Heavy duty float switch
  • Versatile, three module ("tri-mod") construction
    • Easy to customise  & repair
  • Available with a range of approvals (e.g. IECEx, ATEX, etc), certificates (e.g. SIL1 & SIL2), reports (e.g. materials & functional tests) & marine insurer approvals (e.g. ABS, GL, DNV, Lloyd's etc)
  • Mounting: range of options
    • Typically via counter flange or directly to tank wall via bolts
    • Flanged units also available
  • Wetted materials: 316SS
    • Wide range of other materials including hastelloy-C available on request
  • Output: SIL1 SPDT microswitches are standard, but a choice of:
    • Gold contacts for low current, low voltage applications (e.g. simple device in intrinsically safe circuits)
    • Namur proximity switches
    • High temperature
    • IECEx Ex de
    • Pneumatic (on / off or proportional) - refer pneumatic models
  • Temperature: 0 » 300°C (standard)
    • Higher temperature models available
  • Pressure: standard up to 25bar @ 300°C
  • S.G.: >0.7 (special models available on request)
  • Electrical connection: weatherproof (IP65), typically with M20 cable gland
  • Options:
    • Counter flange: weld to tank for easy mounting - available in 316SS & carbon steel
    • Test actuator: mechanical test actuator allows for testing of the switch during routine preventative maintenence
    • Pressure chambers: remove the float from inside the process tank - custom built to meet specific application needs
    • Top mount, bent rod & other configurations
  • Big range of units available ex. stock (e.g. AA 01 04, A 01 041, AA 01 093, AA 01 051E15, ZKK5 01 04) with many other configurations built next business day
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Gems Sensors LS-7 Side mount, Engineered Plastics, Low Cost

  • Use on liquids with SG’s as low as 0.55
  • Materials: model dependent - Polypropylene, Nylon, Versaplast
  • Temperature: -40 » 148.9°C
  • Pressure: 3, 7 & 10 bar (model dependent)
  • Output: SPST reed switch (20VA)
    • NO/NC selectable
  • Process connection: various connections
    • ½”NPT threaded (some models available with BSP)
    • external & internal mount models
    • expansion plug
  • Electrical connection:  24" flying leads - NOT IP65 (weatherproof)
    • The Type 7 models have a ½" NPT threaded conduit connection which can be used for easy weatherproofing of the elctrical connection.
    • Optional junction box (AL or 316SS) with pre-wired terminal can be added to the Type 7 on request.
  • Typical stock units include: 131100, 140620, 160450, 160460, 164520, 165570, 165800, 177100, 181041, 181291, 182600, 189423 & 191080
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Gems Sensors LS-7 Side mount, Stainless Steel & Alloys

  • Corrosion resistant, rugged
  • Use on liquids with SG’s as low as 0.55
  • Materials: model dependent - 316 stainless steel, zinc / nylon or zinc / polypropylene
  • Temperature: -40 » 148.9°C
  • Pressure: 7, 10 & 20 bar (model dependent)
  • Output: SPST reed switch (20VA)
    • NO/NC selectable
  • Process connection: various connections
    • ½”NPT threaded (some models available with BSP)
    • external & internal mount models
    • expansion plug
  • Electrical connection:  24" flying leads - NOT IP65 (weatherproof)
    • The Type 7 models have a ½" NPT threaded conduit connection which can be used for easy weatherproofing of the elctrical connection.
    • Optional junction box (AL or 316SS) with pre-wired terminal can be added to the Type 7 on request.
  • Typical stock units include: 155680, 164860, 164870
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Trimod Besta top mount float level switch

  • Heavy duty float switch
  • Versatile, three module ("tri-mod") construction
    • Easy to customise  & repair
  • Available with a range of approvals (e.g. IECEx, ATEX, etc), certificates (e.g. SIL1 & SIL2), reports (e.g. materials & functional tests) & marine insurer approvals (e.g. ABS, GL, DNV, Lloyd's etc)
  • Mounting: range of options
    • Typically directly to tank via square flange (P.C.D. 92mm)
    • Most flange styles also available
  • Wetted materials: 316SS
    • Wide range of other materials including hastelloy-C available on request
  • Output: emptying or filling pump control with a single switch or point level (customised onsite)
    • SIL1 SPDT microswitches are standard, but a choice of:
      • Gold contacts for low current, low voltage applications (e.g. simple device in intrinsically safe circuits)
      • Namur proximity switches
      • High temperature
      • IECEx Ex de
      • Pneumatic (on / off or proportional) - refer pneumatic models
  • Temperature: 0 » 300°C (standard)
    • Higher temperature models available
  • Pressure: standard up to 25bar @ 300°C
  • S.G.: >0.45 (special models available on request)
  • Electrical connection: weatherproof (IP65), typically with M20 cable gland
  • Options:
    • Side mount, bent rod & other configurations
  • Big range of units available ex. stock (e.g. AA 01 140, AA 01 141, ZKK5 01 145, ZKK5 01 146) with many other configurations built next business day
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Gems Sensors LS-3 compact, engineered plastic float level switch

  • Compact, durable float type level switches for OEM & low cost applications
  • Mounting: top or bottom mounted (vertical) - range of thread types available
  • Wetted materials: choice of Polypropylene (PP), Polysulfone, Nylon & FDA-approved PVDF
  • Output: SPST (swappable NO / NC on-site) reed switch, 20VA
  • S.G.: choice of floats for liquids with specific gravities as low as 0.45
  • Temperature: -40 » 121°C
  • Pressure: from 3 » 10bar (50»150PSIg), depending on the model
  • Electrical connection: typically lead wires, not IP65 (i.e. not weatherproof without additional protection)
  • Special models available for unusual applications, including stilling tube / sloosh shield for turbulent tanks.
  • Stocked models include: 116826, 142505, 142545, 163931, 171512, 173250, 189787, 201540, 220280, 42295, 65656 & 76707
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Trimod Besta side mount pneumatic level switch

  • Heavy duty float switch with pneumatic outputs
  • Versatile, three module ("tri-mod") construction
    • Easy to customise  & repair
    • Upgrade / change a microswitch (SPDT) model to pneumatic if requied
  • Available with a range of approvals, certificates (e.g. SIL1 & SIL2), reports (e.g. materials & functional tests) & marine insurer approvals (e.g. ABS, GL, DNV, Lloyd's etc)
  • Mounting: range of options
    • Typically via counter flange or directly to tank wall via bolts
    • Flanged units also available
  • Wetted materials: 316SS
    • Wide range of other materials including hastelloy-C available on request
  • Output: choice of on/off or proportional output switch modules
    • PV: on / off (3/2 way valve) switch
    • MV: proportional controller (e.g. air actuated valves)
    • FxV: function tested (e.g. FPV, FMV) models available for hazardous area applications
  • Pneumatic details:
    • Control Pressure: 10bar max.
    • Leakage: 1cm³/min max. @ 10bar
    • Air flow: 90NL/min air flow @ 6bar
    • Pressure drop: 1 bar
    • Air quality: class 4, ISO 8571 (max. particle size 15µm, max. particle density 8mg/m³)
  • Temperature: 1 » 250°C (media), 1 » 80°C (ambient)
    • Higher temperature models available
  • Pressure: standard up to 25bar @ 250°C
  • S.G.: >0.7 (special models available on request)
  • Electrical connection: weatherproof (IP65), typically with M20 cable gland
  • Options:
    • Counter flange: weld to tank for easy mounting - available in 316SS & carbon steel
    • Test actuator: mechanical test actuator allows for testing of the switch during routine preventative maintenence
    • Pressure chambers: remove the float from inside the process tank - custom built to meet specific application needs
    • Top mount, bent rod & other configurations
  • Big range of units available ex. stock (e.g. PV 01 04, MV 01 04, PV 01 140, MV 01 140, FPV 01 04, FPV 01 146, F5DPV 01 04, F5DPV 01 146) with many other configurations built next business day
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Kari (standard) S series tilt float switch

  • Large, buoyant float for black & dirty water
    • S.G > 0.65
    • e.g. sewage / wastewater
  • Up to four switch points from a single float
    • high alarm, low alarm & pump controller in one float!
  • Wide range of cable material choice available
  • Temp: standard units up to 55°C (75°C on special request)
  • Optional gold contacts (Au models) for low current / voltage applications
  • Typically stocked models (cable lengths may vary): 1C, 1H, 1HEAu, 1L, 1LAu, 1LEAu, 2H, 2HL, 2L, 3H, 3HE, 3HEAu, 3L, 3LEAu & 4H
  • To understand just how the Kari range can work, please see our YouTube video
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Kari (compact) C series tilt float switch

  • General purpose applications
    • S.G > 0.75
    • e.g. dirty water
  • Pump controller with isolated level alarm in a single float
  • Wide range of cable material choice available
  • Temp: standard units up to 55°C (75°C on special request)
  • Optional gold contacts (Au models) for low current / voltage applications
  • Typically stocked models (cable lengths may vary): C1C, C1CAu, C1CKS, C2C, C2CAu & C3H
  • To understand just how the Kari range can work, please see our YouTube video
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Kari (mini) M series tilt float switch

  • Small float for clean liquids
    • S.G. > 0.85
    • e.g. clean water
  • Pump control with a single float
  • Wide range of cable material choice available
  • Temp: standard units up to 55°C (75°C on special request)
  • Optional gold contacts (Au models) for low current / voltage applications
  • Typically stocked models (cable lengths may vary): M1C, M1CK, M1H, M1L, M2H & M2L
  • To understand just how the Kari range can work, please see our YouTube video
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Gems Sensors LS-750P custom float switch

  • Hybrid unit custom designed for OEM applications like rain water tanks with small openings
    • Weighted unit with submersible cabling & slosh shield to prevent switch chatter in turbulent liquid
    • Combination of Gems LS-3 (p/n: 142545) & LS-750 (p/n: 149350), both of which are also stocked parts
  • Mounting: hung directly into tank
  • Wetted materials: brass, PP (polypropylene float) & PVC cable
  • Output: SPST (swappable NO / NC on-site) reed switch (20VA)
  • Temperature: ranges -40 » 65°C
  • Pressure: up to 10bar @ 30°C
  • S.G.: (vary between models) >0.9
  • Electrical connection: waterproof, 7.5m PVC cable connection
  • Stocked models: 016-4151
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CCS single point float level switches

  • Designed for clean liquids - e.g. fresh water
  • Wide choice of process connections - flanged, threaded (incl. compression fittings), tri-clamp or something custom!
  • Max. 1200mm overall length
  • Wetted parts: 316SS (Ø29mm OD floats)
  • Outputs: SPDT or SPST (N.O or N.C) reed switches
  • Media: 120°C, 9.8 bar, S.G.> 0.8
  • Simple device (AS / NZS 60079.11) compliant versions available
  • Stocked models (CCS-1-FL-1/8T CCS-1-FL-1/8T90)
    • 300mm lead wire
    • G1/8" (BSPP) connection with locknut
    • Ø8mm OD tube
    • N.O or N.C switching
    • Switch: 500mA (res) @ 32Vac/dc
    • 316SS
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Gems Sensors LS-30, LS-74780 + LS-1900TFE engineered plastic float switches for aggressive or ultra-pure liquids

  • Polysulfone, CPVC, PTFE
  • Use on liquids with Specific Gravities as low as 0.55
  • Temperatures -40 to 107°C, 82°C, 149°C respectively
  • Pressure ranges to 3 bar, 1 bar, 2 bar respectively
  • SPST reed switch 20VA, 240VAC, NO/NC selectable
  • 1/4” NPT mounting
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Gems Sensors LS-1750 & LS-1755 top / bottom mount, small size, stainless steel float switches

  • 316 stainless steel wetted parts
  • Corrosion resistant materials, rugged
  • Temperature: from 40 up to 249°C - dependent of model
  • Pressure ranges 7 bar, model to 70bar
  • SPST reed switch 20VA, 240VAC, NO/NC selectable
  • 1/8” NPT or BSPT (R1/8") threaded
  • Typical stock units include: 01750, 01755 & 79990
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Gems Sensors LS-1700 top / bottom mount, small size float switches

  • Stocked models include: 01701, 01702 & 011-1700
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Gems Sensors LS-1800 + LS-1900 alloy float switches for top mounting

  • Brass & 316 Stainless Steel with Buna N/Teflon floats
  • Use on liquids with Specific Gravities as low as 0.55
  • Temperatures fluid dependent
  • Pressure ranges to 10 & 20 bar
  • SPST reed switch 20VA & 100VA, 240VAC, NO/NC
  • 1/8” & 1/4” NPT mounting
  • Typical stock units include: 
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Gems Sensors LS-1950 + LS-1950E large size, stainless steel, high pressure float switch

  • Single point float switch for heavy duty applications
  • Materials: 316 stainless steel
  • Temperature: -40 » 149°C (optional model up to to 249°C)
  • Pressure: LS-1950: 51bar, LS-1950E: 30bar
  • Specific gravity: >0.75
  • Switch: choice of outputs available, refer datasheets
    • SPST (relay) reed switch: 20VA or 100VA - swappable NO / NC
    • SPDT (relay) reed switch: 20VA (LS-1950E)
  • Process connection: G¼” or ¼" NPT threaded
  • Typical stock units include: 011-1950, 01950, 26717 & 79999
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Besta SR6 bilge level switch for marine applications

  • Designed for marine applications
    • Switch carries Germanischer Lloyd (GL)
    • Slosh shield stills liquid to prevent switch "chatter"
    • Heavy duty applications
  • Mounting: directly to tank wall or via U-bolt
  • Wetted materials: 316SS
  • Output: choice of SPDT (40VA change-over)  or SPST (100VA swappable NO / NC on-site) reed switch
  • Temperature: ranges -40 » 80°C
  • Pressure: up to 16bar
  • S.G.:>0.75
    • Electrical connection: waterproof (IP68), 2m PVC cable connection
  • Test actuator: mechanical test actuator allows for testing of the switch during routine preventative maintenence
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Gems Sensors LS-240-3E + LS-270 / LS-270-E bilge (marine) level switches

  • Designed for marine applications
    • Some units (LS-240-3E & LS-270-E) have Germanischer Lloyd (GL) or American Bureau of Shipping (ABS) approval
    • Can be ordered with Certificate of Conformance from factory 
    • Slosh shield stills liquid to prevent switch "chatter"
    • ATEX certified (Ex ia) model available LS-240-3E-Exi
  • Heavy duty applications (approx. 30mm float movement for switching)
  • Mounting: directly to tank wall or via U-bolt
  • Wetted materials: (vary between models) brass, 316SS, lucite & Buna N
  • Output: SPST (swappable NO / NC on-site) reed switch - choice of ratings (20 / 50 / 100VA)
  • Temperature: ranges -40 » 60°C (80°C option available)
  • Pressure: up to 10bar
  • S.G.: (vary between models) >0.53
  • Electrical connection: waterproof, 2m cable connection
  • Stocked models include:
    • LS-240-3E: 010-0965, 010-3433, 010-3434, 010-5002, 016-1418, 053-1221
    • LS-270: 43760, 43765
    • LS-270-E: 010-0349, 010-0350
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Gems Sensors LS-800-5 single point bottle switch

  • When a Switch Won’t Fit In the Tank, Use a Non-Intrusive Bottle Type
  • Wetted parts: 316SS, brass, Buna-N, Viton, copper or AL
  • Stocked units: 172635
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Gems Sensors LS-2050 / LS-2050E + LS-52100 / LS-52100E large stainless steel & alloy float switches

  • Heavy duty applications with ½ & ¾” switching differentials
  • Materials: alternatives available include brass, 316SS & Buna N (float only)
  • Temperature: -40 » 148°C
  • Fluid: S.G. > 0.8
  • Pressure: 10, 34 & 62 bar (model dependent)
  • Output: SPST reed switch (20VA or 100VA)
      • NO/NC selectable
      • Very low current with 240Vac
  • Process connection: 1" NPT or R1" (BSPT) male thread
  • Electrical connection:  24" flying leads - NOT IP65 (weatherproof)
  • Optional aluminium or 316SS junction box (IP65) with pre-wired terminal strip
    • 240Vac version available with lock-out screw
  • Typical stock units include: 010-3462, 010-3463, 30288 & 52100
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Gems Sensors LS-10 interstitial level switch

  • Valox (R) housing, polyethylene float
  • Senses presence of fluid in double wall tanks, pipes
  • Temperature ranges -40 to 80°C
  • Pressure atmospheric
  • Fluids sensed; hydrocarbons or water
  • SPST reed switch 10W, 50-120VDC Resistive only
  • 16mm depth, 38mm wide
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Trimod Besta industrial float level switches

  • Flanges to ANSI, BS DIN, or JS
  • Pressures to CI 2500ANSI, PN 315DIN
  • High and low temperature options
  • Stainless grades to suit applications
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Trimod Besta plastic industrial float level switches

  • Corrosion resistant; PP, PVDF, PTFE
  • ANSI, DIN, BS and JIS flanges
  • Side and top mounting types
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Trimod Besta hazardous area approved float level switches

  • IECEx, US, Canadian & European approvals
  • Flameproof & intrinsically safe
  • SIL certified
  • Top & side mount
  • Function tested pneumatic models
  • Wide range available ex. stock
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Gems Sensors LS-3 special - 76707 low activation point float switch

  • Compact, durable 76707 float type level switch for OEM & low cost applications
    • Low float centre of gravity ensures switching very close (~16mm) to the end of float shaft
  • Mounting: top or bottom mounted (vertical) - range of thread types available
  • Wetted materials: polysulfone, Buna-N & epoxy
  • Output: SPST, N.C. dry reed switch, 20VA
  • S.G.: may be used on water, some oils & chemicals
  • Temperature: -40 » 82°C
  • Pressure: from 3 bar (50PSIg)
  • Electrical connection: 72" PVC flying leads, not IP65 (i.e. not weatherproof without additional protection)
  • Other LS-3 models available ex. stock
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Besta SR6 bilge level switch for marine applications

  • Designed for marine applications
    • Switch carries Germanischer Lloyd (GL)
    • Slosh shield stills liquid to prevent switch "chatter"
    • Heavy duty applications
  • Mounting: directly to tank wall or via U-bolt
  • Wetted materials: 316SS
  • Output: choice of SPDT (40VA change-over)  or SPST (100VA swappable NO / NC on-site) reed switch
  • Temperature: ranges -40 » 80°C
  • Pressure: up to 16bar
  • S.G.:>0.75
    • Electrical connection: waterproof (IP68), 2m PVC cable connection
  • Test actuator: mechanical test actuator allows for testing of the switch during routine preventative maintenence
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Gems Sensors LS-240-3E + LS-270 / LS-270-E bilge (marine) level switches

  • Designed for marine applications
    • Some units (LS-240-3E & LS-270-E) have Germanischer Lloyd (GL) or American Bureau of Shipping (ABS) approval
    • Can be ordered with Certificate of Conformance from factory 
    • Slosh shield stills liquid to prevent switch "chatter"
    • ATEX certified (Ex ia) model available LS-240-3E-Exi
  • Heavy duty applications (approx. 30mm float movement for switching)
  • Mounting: directly to tank wall or via U-bolt
  • Wetted materials: (vary between models) brass, 316SS, lucite & Buna N
  • Output: SPST (swappable NO / NC on-site) reed switch - choice of ratings (20 / 50 / 100VA)
  • Temperature: ranges -40 » 60°C (80°C option available)
  • Pressure: up to 10bar
  • S.G.: (vary between models) >0.53
  • Electrical connection: waterproof, 2m cable connection
  • Stocked models include:
    • LS-240-3E: 010-0965, 010-3433, 010-3434, 010-5002, 016-1418, 053-1221
    • LS-270: 43760, 43765
    • LS-270-E: 010-0349, 010-0350
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CCS multi point float switch with small SS floats

  • Designed for clean liquids - e.g. fresh water
  • Wide choice of process connections - flanged, threaded, tri-clamp or something custom!
  • Wetted parts: 316SS (Ø29mm OD floats)
  • Up to 5 floats in one unit (max. 1200mm overall length)
  • SPDT or SPST reed switches
  • Media: 120°C, 9.8 bar, S.G.> 0.8
  • Simple device (AS / NZS 60079.11) compliant versions available
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CCL / CCL2 multi point float switch with large SS floats

  • Designed for various liquids
  • Wide choice of process connections - flanged, threaded, tri-clamp or something custom!
  • Wetted parts: 316SS (Ø52 or 45mm OD floats)
  • Up to 5 floats in one unit (max. 1800mm overall length)
  • SPDT or SPST reed switches
  • Media: 120°C, 29.4 bar (11.7 bar for CCL2), S.G.> 0.55
  • Simple device (AS / NZS 60079.11) compliant versions available
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Gems Sensors LS-800 & LS-800E multi-point level switch

  • Rugged metallic units ideal for larger tanks up to 3.4m (11 feet) or more.
    • Models available with marine agency approvals, suitable for Navy applications
  • As with all Gems products, these are highly customisable to suit OEM requirements
    • Includes length, fitting, number of switch points, wetted materials & the inclusion of temperature sensors.
  • Wetted materials: brass, 316SS or Buna-N - others possible on request
  • Mounting: flange or threaded (NPT or G type BSPP for LS-800E)
  • Output:
    • Level: SPST (20 / 100VA) or SPDT (20VA) reed switches
      • Up to 6 switch actuation points / levels
    • Temperature: thermistor RTD (TM-800 models) or thermostat (TH-800 models)
  • S.G.: choice of floats for specific gravities >0.55
  • Temperature: from 82 » 149°C - depending on materials
  • Pressure: up to 750PSI (51 bar) - depending on materials
  • Length: up to 3.4m or more
  • Electrical connection: cables, lead wires or junction boxes
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CCSP multi point float switch with small floats

  • Designed for light liquids - e.g. diesel
  • Wide choice of process connections - flanged, threaded, tri-clamp or something custom!
  • Wetted parts: 316SS, Buna-N (Ø18.5mm OD floats) & brass
  • Up to 5 floats in one unit (max. 1800mm overall length)
  • SPDT or SPST reed switches
  • Media: 100°C, atmospheric pressure, S.G. > 0.5
  • Simple device (AS / NZS 60079.11) compliant versions available
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Gems Sensors LS-800PVC & LS-800E-PVC multi-point level switch

  • Rugged plastic units ideal for chemical storage or potable water tanks.
    • Models available with NSF Approval
  • As with all Gems products, these are highly customisable to suit OEM requirements
    • Includes length, fitting & number of switch points
  • Wetted materials: Buna-N or all PVC-U engineered plastic
  • Mounting: flange or threaded
  • Output: SPST (20 / 100VA) or SPDT (20VA) reed switches
    • Up to 7 switch actuation points / levels
  • S.G.: choice of floats for specific gravities >0.8
  • Temperature: up to 51°C
  • Pressure: atmospheric - not recommended for pressurised applicaitons
  • Length: up to 1.5m (60") - longer on special request
  • Electrical connection: cables, lead wires or junction boxes
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Gems Sensors LS-700 multi-point level switch

  • Compact, rugged metallic units ideal for tanks less than 1.2m (4 feet).
  • As with all Gems products, these are highly customisable to suit OEM requirements
    • Includes length, fitting, number of switch points, wetted materials & the inclusion of temperature sensors.
  • Wetted materials: brass, 316SS, Buna-N, PTFE or polypropylene (PP) - others possible on request
  • Mounting: flange or threaded
  • Output:
    • Level: SPST reed switch with a choice of ratings (20 / 100VA)
      • Up to 5 switch actuation points / levels
    • Temperature: thermistor RTD (TM-700 models) or thermostat (TH-700 models)
  • S.G.: choice of floats for specific gravities >0.45
  • Temperature: from 82 » 149°C - depending on materials
  • Pressure: up to 1000PSI (68 bar) - depending on materials
  • Length: up to 1.2m
  • Electrical connection: cables, lead wires or junction boxes
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Gems Sensors LS-350 multi-point level switch with built-in siphon / fill tube

  • Great for automated medical, chemical dosing or sampling equipment the custom built LS-350 multi-point level switch saves space and cost by including both level sensing & fluid removal / addition capacity via a single opening in a fluid container
    • Perfect for re-use in replacement containers without the need for re-wiring or time consuming re-installation / calibration
  • As with all Gems products, these are highly customisable to suit OEM requirements
    • Includes length, fitting, hose barb, number of switch points & wetted materials
    • Even available with safety switch output to ensure correct installation (safety latching of equipment) to avoid spills
  • Wetted materials: Buna-N, Noryl or polysulfone (PSU) - others possible on request
  • Mounting: flange or plug (top or bottom mounted)
  • Output: SPST reed switch with a choice of ratings
    • Up to 6 switch actuation points / levels
  • S.G.: choice of floats for specific gravities >0.75
  • Temperature: 99°C or more (depending on materials)
  • Pressure: atmospheric - not recommended for pressurised applicaitons
  • Length: up to 380mm standard, longer on request
  • Fluid barb: compatible with 3/16" I.D. hose (standard)
  • Electrical connection: cables or lead wires
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Besta SR 30 plastic, multipoint float level switch with junction box

  • Custom made level switch with multiple floats
  • Wetted materials: all engineered plastic (no metals) - choice of PP, PVC or PVDF
  • Media: S.G. >0.6
  • Output: reed switch - choice of SPST (N.O or N.C) or SPDT (change-over)
  • Temperature: -10 » 80°C
  • Pressure: <0.3 MPa (3 bar or ~43PSI)
  • Enclosure: IP66 junction box (AL or polycarbonate)
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Besta SR 32 plastic, multipoint float level switch

  • Custom made level switch with multiple floats
  • Wetted materials: all engineered plastic (no metals) - choice of PP, PVC or PVDF
  • Media: S.G. >0.6
  • Output: reed switch - choice of SPST (N.O or N.C) or SPDT (change-over)
  • Temperature: -10 » 80°C
  • Pressure: <0.3 MPa (3 bar or ~43PSI)
  • Enclosure: IP65 DIN 43650 plug with cable gland
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Gems Sensors ELS-1100 Electro-Optic General Purpose Liquid Level Sensor Sensor

  • Polysulfone or Nylon wetted parts
  • General purpose applications
  • Temperature ranges –18 » 80°C
  • Pressure range 10 bar
  • TTL/CMOS compatible( open collector output )
  • ¼” NPT threaded
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Senlux Besta OPG01 opto-electronic level switch

  • No moving parts switch made from stainless steel with a quartz glass tip for detecting levels of liquid media.
  • Supply: 12 » 32Vdc
  • Output: PNP (200 mA), reverse polarity protected
    • Function Opener / Closer
    • LED on rear of device
  • Enclosure: IP65
  • Electrical connection: Cable PVC, PUR, 3 x 0,25 mm² or Plug M8, other types on request
  • Pressure max: 10 bar
  • Temperature: -30 » 100°C (Ambient -25 » 70°C)
  • Materials: housing stainless steel 1.4305 (optional also in stainless steel 1.4571), quartz glass prism
  • Accuracy:±0.5 mm
    • Models available with adjustable sensitivity
  • Process connections: 3/8" BSPP, M12x1, ½" BSPP (other types on request)
    • Mounting direction any
    • min. distance sensor tip to reflecting wall 10 mm
  • Typically stocked models: OPG01 A2POT & OPG01 B2POT 
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Senlux Besta OPG04 opto-electronic level switch

  • No moving parts with a quartz glass tip for detecting levels of liquid media - made from nickel-plated steel for refrigeration applications.
  • Supply: 12 » 32Vdc
  • Output: PNP (200 mA), reverse polarity protected
    • Function Opener / Closer
    • LED on rear of device
  • Enclosure: IP65
  • Electrical connection: Cable PVC, PUR, 3 x 0,25 mm² or Plug M8, other types on request
  • Pressure max: 40 bar
  • Temperature: -40 » 100°C (Ambient -30 » 70°C)
  • Materials: nickel-plated steel
    • Glass fused with the steel body (without a seal)
  • Accuracy:±0.5 mm
    • Models available with adjustable sensitivity
  • Process connections: ½" BSPP (other types on request)
    • Mounting direction any
    • min. distance sensor tip to reflecting wall 10 mm
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Senlux Besta OPG05 opto-electronic level switch

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Gems Sensors ELS-1100TFE Electro-Optic Ultra-Pure Liquid Level Sensor

  • Teflon wetted parts
  • High purity or chemically aggressive applications
  • Temperature ranges –18 to 80°C
  • Pressure range 10 bar
  • TTL/CMOS compatible( open collector output )
  • 1/4” NPT threaded
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Gems Sensors ELS-1150 Electro-Optic Compact Liquid Level Sensor

  • Compact level switch with no moving parts
    • Ideal for monitoring the small, pressurized vessels found in HVAC, refrigeration and hydraulic applications
  • Upgraded with micro-processor board to provide a wide range of new OEM opportunities!
    • e.g. electrical termination, output time delay etc
  • Materials: nickel-plated carbon steel or stainless steel (model dependent), fused glass
  • Pressure: up to 2500Psig
  • Temperature: -40 » 100°C
    • High temperature versions are also available
  • Output: transistor (open collector) - wet or dry sink
    • Refer also optional Opto-Pak Controller (link) for relay output
    • Ex approved (FM Certified) versions also available
  • Supply: 5 & 12Vdc models
  • Process connections: choice of ½” NPT or ¾"-16 straight thread
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Gems Sensors ELS-1200 Electro-Optic High Feature Liquid Level Sensor

  • Nickel plated carbon steel, Stainless & Hasteloy C versions
  • High pressure rated and corrosion resistant
  • Temperature ranges –40 to 100°C
  • Pressure range 172 bar
  • TTL/CMOS compatible( open collector output )
  • 1/2” & 3/4” NPT threaded
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Senlux Besta OPG03 opto-electronic level switch

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Senlux Besta OPG061 opto-electronic level switch

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Senlux Besta OPG06 opto-electronic level switch

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Sitron SOP400 series electro-optic level switches

  • No moving parts
  • Small size for tight applications
  • Supply: 9»32VDC or 5»12VDC
  • Output: Transistor output PNP (NO) or NPN (NO or NC) or remote LV400 controller with relay output
    • Local: LED indication
  • Performance: ±0.5mm repeatability, <1mm hysteresis, ~1sec response time
  • Process conn: NPT, BSP or sanitary fittings
    • Insertion length: typically 35mm
  • Media: 
    • Temperature: -40 » 100°C media (up to 135°C on request)
    • Pressure: up to 20 bar
  • Wetted parts: 316SS or PVC (>¾"), 
  • Enclosure:IP67
    • M12 cable or plug
  • Protection: reverse polarity, short circuit & over voltage
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Sitron capacitive level switches

  • Incredible range of customisation available
  • No moving parts for long, service free operation
  • Wide range of process connections - e.g. flanged, tri-clamp, threaded (BSP, NPT & others)
  • Custom lengths - with or without reference sheath
  • 24Vdc and mains versions available
  • SPDT relay(s) or transistor
  • Range of weatherproof junction box electrical terminations (e.g. nylon, aluminium or stainless steel)
    • Remote display / controller models also available
  • Adjustable inline - tune to specific liquids for interface level applications
  • Models include: SC200, SC700, SC750 & more
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Gems Sensors WIF water in fuel & lubricating oil switch

  • The rugged WIF-1250 sensor was designed with no moving parts (conductivity) to provide compact, reliable & simple detection of the presence of water in fuel.
    • Typical applications include off-highway vehicles, heavy machinery, diesel storage tanks and generator sets.  It can also be a useful addition to fuel filters and lubricating oil tanks to sense lubricant property degradation.
    • Alternating (±DC sqaure wave) potential prevents typical metal probe material loss through electrolysis
  • Suitable OEM applications with customisation available on request
  • Process conditions: -40»125°C, up to 750PSI (@21°C)
  • Materials: nickel plated steel, electrolytic nickel plated & fused glass
  • Insertion length: approx. 5mm
  • Sensitivity: 10kΩ
  • Slosh dampening: 5secs delay
  • Supply: 8»32Vdc
  • Output: open collector (sinking output) on wet or dry
  • Electrical connection: 380mm cable (15")
  • Mounting: in any position, threaded
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Gems Sensors XLS-1 ultrasonic level switch

  • Compact, rugged level switch with no moving parts
    • Ideal for generators, water tanks, radiators, printers, off-road vehicles & other industrial equipment
  • Materials: 316L SS
  • Process connections: ¼" NPT, ½" NPT, M12x1.0, M12x1.5, ½"-20 or G¼
    • OEM option available
  • Supply: 5»28Vdc
  • Output: open collector - sinking or sourcing switch
  • Electrical connection: IP67, IP6K9K (wetted sensor parts only)
  • Temperature: -40 » 125°C media (ambient up to 85°C)
  • Pressure: up to 250PSIg
  • Fluid compatibility:water, water-based media, hydrocarbon-based chemicals
    • NOT for use with high viscosity liquids (>200cSt)
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Gems Sensors ULS-11 ultrasonic level switch

  • Rugged, self contained for level switch with no moving part for robust applications
  • 316 stainless steel wetted parts
  • Process connection: ¾" NPTM threaded
  • Supply: 9»36Vdc
  • Temperature: –29 » 71°C
  • Pressure: up to 69 bar
  • Output: relay NO, NC or SPDT (model dependent)
    • Delay: 0.5secs
  • Ingress protection: NEMA 4 (IP65) / NEMA 7 enclosures
  • Stocked models: 175387 (NO), 226378 (NC)
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Gems Sensors ULS-50 ultrasonic level switch

  • Polypropylene or PFA Teflon(R) wetted parts
  • General purpose or submersible applications
  • Temperature ranges –40 to 90°C
  • Pressure range 10 bar @ 25°C
  • 1Amp SPDT Relay output
  • NEMA 6 ( IP68 ) enclosure
  • ¾” NPT threaded
  • Stocked model: 195052
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Besta BLS frequency-sweep technology level switch

  • One sensor detects a wide range of different media (liquids, bulk goods / grains, sticky or pasty media, high or low viscosity) - immune to foams & suspended particles
  • No moving parts for maintenance free operation
  • Rugged design, resistant to shocks & vibrations (IEC 60068-2-6, GL test 2)
  • Compact with fully integrated electronics (LED switch status indication)
  • Fast response time (<100msec)
  • Mount in any orientation - with correct factory setting even coating shouldn't affect switch
  • Factory set to required dielectric constant (DK) though one setting works for about 80% of media!
  • Process conditions: -40»115°C, up to 100bar
  • Materials: stainless steel & PEEK
  • Approvals: DNV marine and FDA / hygenic models available (CIP can withstand up to 130°C for 1hr)
  • Optional factory set damping 0»10secs, 0.1sec by default)
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Gems Sensors ULS-1

  • Compact, ultrasonic point level switch
  • No moving parts for long service life, rugged usage
  • Wetted parts: 316SS
  • Process conditions: 80°C
  • Outputs: SPST relay and transistor (wet sink or source) models available
    • Delay: 0.5sec
  • Mounting: ¼" & ½" NPT thread models
  • Supply: 5»30Vdc
  • Electrical connection: weatherproof (IP65) with 12" (300mm) PVC cables
  • Some models available ex. stock including 220903, 221485 & 221486.
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Gems Sensors & Controls CAP-100, non-contact, capacitive level switch

  • Non-contact level switch designed for monitoring liquid level through plastic / glass / fibreglass containers.
    • e.g. containers of waste, reagent or diluent liquid
  • Great for nasty chemicals or tanks which don't allow for easy mounting of contact switches (e.g. float switches).
    • Works well with dark, sticky and viscous liquids difficult to sense in other ways
  • Temperature: -25 » 70°C
  • Supply: 5»48Vdc
    • Protection: transient, short circuit, reverse polarity & overload
  • Enclosure: weatherproof (IP67, NEMA 1»13)
  • Mounting: simple wall mount
  • Sensing range: gap between sensor surface & liquid including wall thickness of container
  • Output: switch (transistor) - either wet or dry sink for water based or non-conductive liquids
    • LED: power & switch
  • Setting: adjustable sensitivity for on-site calibration to media
  • Stocked models include: 228830, 230079 & 230081
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Gems Sensors & Controls CAP-150, non-contact, capacitive level switch

  • Non-contact level switch designed for monitoring liquid level through plastic / glass / fibreglass containers.
    • e.g. containers of waste, reagent or diluent liquid
  • Mount to sight glass with custom clamp (p/n 240836) for level switching
  • Great for nasty chemicals or tanks which don't allow for easy mounting of contact switches (e.g. float switches).
    • Works well with dark, sticky and viscous liquids difficult to sense in other ways
  • Temperature: -25 » 70°C
  • Supply: 5»48Vdc
    • Protection: short circuit & reverse polarity
  • Enclosure: weatherproof (IP67, NEMA 1»13)
  • Mounting: threaded or direct to sight glass ØO.D. ¼ » 1"
  • Sensing range: 1»8mm gap (model dependent) between sensor surface & liquid including wall thickness of container
  • Output: switch (transistor) - either wet or dry sink for water based or non-conductive liquids
    • LED: power & switch
  • Setting: adjustable sensitivity for on-site calibration to media
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Sitron conductive level switches & controllers

  • Incredible range of customisation available
  • No moving parts for long, service free operation
  • Wide range of process connections - e.g. flanged, tri-clamp, threaded (BSP, NPT & others)
  • Custom lengths
  • 24Vdc and mains versions available
  • SPDT relay(s) or standalone pump controller circuits
  • Range of weatherproof junction box electrical terminations (e.g. nylon, aluminium or stainless steel)
      • Remote display / controller models also available
  • Adjustable inline - tune to specific liquids for interface level applications
  • Models include: CN1, CN2, EL family & more
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Warrick general purpose plug-in conductive sensors

  • Manufactured by Gems Sensors & Controls (USA)
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Elko SHR-2 conductive probe for submersible applications

  • Simply hang the probe in your tank to the desired height
  • Submersible electrical connection
  • Able to use your own cable
    • Max. wire profile 2.5mm² (AWG10)
    • e.g. Elko D05V-K 0.75/3.2
  • Use with Elko pump / level controllers like the HRH-1 (link) or HRH-5 (link)
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Warrick conductive sensor fittings & probes

  • Manufactured by Gems Sensors & Controls (USA)
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Elko SHR-3 conductive level probe

  • For mounting though the tank wall
  • Electrical connection is IP65 (weatherproof)
  • Fixed cable
  • Use with Elko pump / level controllers like the HRH-1 (link) or HRH-5 (link)
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Elko SHR-1 conductive level probe

  • For mounting though the tank wall
  • Electrical connection NOT IP65 (not weatherproof)
  • Able to use your own cable
    • Max. wire profile 2.5mm² (AWG10)
  • Use with Elko pump / level controllers like the HRH-1 (link) or HRH-5 (link)
  • Choice of materials:
    • SHR-1-M: brass sensor tip
    • SHR-1-N: stainless steel sensor tip
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Gems Sensors ULS-1 mini-ultrasonic level switch

  • Compact, rugged level switch with no moving parts
  • Materials: 316SS
  • Process connections: ¼ & ½" NPTM threads (external mounting)
  • Supply: 5»30Vdc
  • Output: relay or transistor output (wet sink or wet source)
    • Delay: 0.5secs to prevent switch chatter with turbulent media
  • Electrical connection: IP65
  • Temperature: up to 80°C
  • Stocked models: 220903, 221486
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Gems Sensors XLS-1 ultrasonic level switch

  • Compact, rugged level switch with no moving parts
    • Ideal for generators, water tanks, radiators, printers, off-road vehicles & other industrial equipment
  • Materials: 316L SS
  • Process connections: ¼" NPT, ½" NPT, M12x1.0, M12x1.5, ½"-20 or G¼
    • OEM option available
  • Supply: 5»28Vdc
  • Output: open collector - sinking or sourcing switch
  • Electrical connection: IP67, IP6K9K (wetted sensor parts only)
  • Temperature: -40 » 125°C media (ambient up to 85°C)
  • Pressure: up to 250PSIg
  • Fluid compatibility:water, water-based media, hydrocarbon-based chemicals
    • NOT for use with high viscosity liquids (>200cSt)
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Gems Sensors ULS-11 ultrasonic level switch

  • Rugged, self contained for level switch with no moving part for robust applications
  • 316 stainless steel wetted parts
  • Process connection: ¾" NPTM threaded
  • Supply: 9»36Vdc
  • Temperature: –29 » 71°C
  • Pressure: up to 69 bar
  • Output: relay NO, NC or SPDT (model dependent)
    • Delay: 0.5secs
  • Ingress protection: NEMA 4 (IP65) / NEMA 7 enclosures
  • Stocked models: 175387 (NO), 226378 (NC)
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Gems Sensors ULS-50 ultrasonic level switch

  • Polypropylene or PFA Teflon(R) wetted parts
  • General purpose or submersible applications
  • Temperature ranges –40 to 90°C
  • Pressure range 10 bar @ 25°C
  • 1Amp SPDT Relay output
  • NEMA 6 ( IP68 ) enclosure
  • ¾” NPT threaded
  • Stocked model: 195052
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Sitron V-Tork vibrating tuning forks

  • Incredible range of customisation available
  • Wide range of process connections - e.g. flanged, tri-clamp, threaded (BSP, NPT & others)
  • Custom lengths
  • DC, AC and direct switching models available
  • SPDT relay or transistor output
  • Range of junction box alternatives (nylon, aluminium or stainless steel)
  • Adjustable in-line
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McDonnell & Miller (Xylem) Series 69 low water cut-off

  • Series 69 & 69J low water cut-off for boilers
  • Stocked item
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McDonnell & Miller (Xylem) Series 150S low water cut-off

  • Series 150S low water cut-off for boilers
    • 150PSI
  • Stocked item
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McDonnell & Miller (Xylem) Series 157S low water cut-off

  • Series 157S low water cut-off & pump controller for boilers
    • 150PSI
  • Contact us for stock & lead-time
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McDonnell & Miller (Xylem) Series 93 low water cut-off & pump controller

  • Series 93 low water cut-off & pump control for boilers
    • 150PSI
  • Stocked item
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McDonnell & Miller (Xylem) Series 94 low water cut-off & pump controller

  • Series 94 (high pressure) low water cut-off & pump controller for boilers
    • 250PSI
  • Stocked item
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Warrick conductive sensor fittings & probes

  • Manufactured by Gems Sensors & Controls (USA)
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Warrick general purpose plug-in conductive sensors

  • Manufactured by Gems Sensors & Controls (USA)
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Elko HRH-5 level controller

  • Level controller for:
    • conductive level switch (8A)
    • direct pump control (filling or emptying) between 2 points
  • Can be used with float switches to provide a simple latching circuit
  • DIN rail mount
  • Stocked product
  • Output: 1 x SPDT relays (8A)
  • Supply: 24Vdc or mains AC
  • IP40 (not weatherproof)
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Elko HRH-1 level controller

  • Level controller for:
    • 2 separate level switches
    • direct pump control (filling or emptying) between 2 points
  • DIN rail mount
  • Stocked product
  • Output: 2 x DPDT relays (16A)
  • Supply: 24Vdc or mains AC
  • IP40 (not weatherproof)
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Kari PKL watertight multi-pin quick connector for pumps

  • Save time & effort by retro-fitting this multi-pin cable connector to pumps
    • Reduce the time taken for electrical connections to seconds
  • Once fitted, no need for electricians when removing a pump for scheduled maintenance or time critical repairs or replacements - just unplug & go!
  • Easy to order - simply specify the number of poles required & the outer diameter of your cable
    • PKL supplied with both female socket & male plug for an easy installation
  • Voltage: up to 750VAC
  • Current: up to 25A on each pole (+ Earth)
  • Poles: available with a choice from 4 » 10 electrical poles (incl. Earth)
  • Materials: plastic housing (EBA & Nylon), brass & SS cores
  • Temperature: -40 » 40°C
  • Protection class: IP67
  • Cables: glands (busings) to suit cable Ø9 » 32mm
  • Weight: 1.1kg (max.)

 

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Gems Sensors Flip-Pak solid state latching circuit

  • Solid state latching circuit
  • Provides a latching circuit for pump control between two level switches
  • Output: 1 x SPST (N.O) relay (5A)
  • Supply: mains AC
  • Not weatherproof
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Elko HRH-6 multi-point conductive level controller

  • Measure up to 5 liquid levels with the use of six conductive probes (5 if the storage tank is metallic)
  • LED confirmation of each level alarm
  • It's possible to connect a secondary "remote" display - useful in applications like trucks to indicate level inside the cabin
  • Adjustable sensitivity for your media
  • Adjustable time delay to avoid sloshing "noise" during filling or whilst driving around
  • Available in 12»24Vdc or 230Vac models
  • Independent 10A relay for "full" or "empty" alarm
  • IP65
  • Choice of pump filling or emptying control
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Gems Sensors Opto-Pak controller for transistor type switches

  • Extend the power & switching capabilities of 10»28Vdc electro-optic switches
  • Supply: 115 and 220Vac models
  • Output: SPDT (5A) relay
  • Enclosure: open board & IP65 enclosure models
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Trimod Besta counterflanges

  • Weld-neck counterflanges for easy installation of side mount level switches (electric & pneumatic models)
    • Square flange, P.C.D. 92mm
  • Carbon steel & 316 stainless steel
  • Long or short weld necks
  • Available ex. stock
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Trimod Besta float chambers

  • Remove the float from inside the process tank - custom built to meet specific application needs
  • Choice of materials - some grey cast iron 16 bar rated off the shelf
  • Industrial chambers ANSI cl150 to 2500
  • Available with a range of approvals (e.g. IECEx, ATEX, etc), certificates (e.g. SIL1 & SIL2), reports (e.g. materials & functional tests) & marine insurer approvals (e.g. ABS, GL, DNV, Lloyd's etc)
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Trimod Besta test actuators

  • A mechanical test actuator allows for testing of the switch during routine preventative maintenence
  • Designed to fit with Besta counterflanges
    • Square flange, P.C.D. 92mm
  • Available ex. stock
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