Level Sensors & Switches

LS-270 Single-Point Level Switch

Part Number: 43982
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LS-270 Series Single-Point Level Switches are small and lightweight and can be bracket-mounted to any convenient surface. They are extremely stable in non-static, highly contaminated liquids and ideal for use in oils and water. Slosh shielding minimizes effects of turbulence and helps prevent interference by foreign material.

  • Lightweight
  • Stable in Non-Static Highly Contaminated Liquids
  • Bracket Mounted


  • Lightweight
  • Stable in Non-Static Highly Contaminated Liquids
  • Bracket Mounted 
Sensor Type
Float Type
Primary Material Of Construction
Wetted Materials
316 Stainless Steel, Buna N, Berylium Copper, Copper Nickel, Polycarbonate, 304 Stainless Steel
Stem Material
Stainless Steel
Float Material
Buna N
Float Diameter
1 7/8"
Actuation Level
1 3/8"
Min. Liquid SG
Maximum Pressure
150 psi
Minimum Temperature
Maximum Temperature
Mounting Size
Mounting Style
Electrical Termination
72" Long, 18 AWG, (2) Conductor Neoprene Cable
Switch Type
SPST (50 VA)
Switch Operation
Normally Closed (Reversible)

Reed Switch Protection

Format .pdf
Size 56 KB

Gems Sensors Instructions, LS-270

Format .pdf
Size 141 KB

Gems Sensors Catalog, Specialty Switches

Format .pdf
Size 4 MB
  • General Industry
  • General Industry - Elevators
  • General Industry - Environmental
  • General Industry - Other
  • General Industry - Tanks
  • Marine - Commercial - Aftermarket
  • Marine - Commercial - Container Ships
  • Marine - Commercial - Cruise Ships
  • Marine - Commercial - Other
  • Marine - Commercial - Pleasure Craft
  • Marine - Commercial - Repair Yard
  • Marine - Commercial - Ship Owner
  • Marine - Commercial - Ship Systems
  • Marine - Commercial - Shipbuilder
  • Marine - Commercial - Workboats
  • Marine - Commercial - Yachts
  • Marine - Govt & Military - Homeland Security
  • Marine - Govt & Military - Marine - Other
  • Marine Vessels
  • Process Applications
  • Process Industry - Other
  • Process Industry - Process Tanks
  • Process Industry - Pulp & Paper
  • Process Tanks
  • Storage Tanks
  • Waster Water Applications
  • Water & Waste Water - Flood Level Monitoring
  • Water & Waste Water - Groundwater Monitoring
  • Water & Waste Water - Other
Is there a minimum current flow requirement for a standard 20VA reed switch?

Yes, very low currents (< 5ma) can prevent “cleaning” of the contacts or not have enough energy to maintain low contact resistance. 5ma is likely a good minimum for our standard 20 VA switch. But you also want enough voltage. Approximately, 5V, 5ma is a good minimum. For low current switching we recommend a 10 VA reed switch which can better handle lower loads. (1ma for example).

What is the life expectancy of a reed switch?

A reed switch is extremely rugged and designed to operate reliably for many years, under ideal conditions, up to about 2 million cycles. To achieve maximum service life, reed switches benefit from protected electrical supply.