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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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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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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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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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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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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