Starting at $69.00
  • Usually ships in 2-3 weeks



  • Withstands Rough Service
  • Ideal for High Viscosity Fluids
  • Brass or Stainless Steel Stem and Mounting
  • Buna-N Float
  • 1/4” NPT process connection
  • Electrical Termination: No. 18 AWG, 24˝, Polymeric Lead Wires
  • Float Diameter: 1-7/8”
  • Switch: SPST, 20 or 100 VA, selectable N.O. or N.C. by inverting float on unit stem
  • Operating Temperature: Water: to 180°F; Oil: -40 to 230°F
  • Maximum Pressure: 150 PSI
  • U.L. Recognized and CSA Listed


The Gems LS-1900 series level switch provides excellent stability for general use in oils and water and is ideal for high viscosity fluids. Rugged and dependable, the LS-1900 is an intermediate size switch with a large float displacement capable of withstanding rough service.

The LS-1900 series is available with brass or stainless steel stem and mounting materials and utilizes a Buna-N float. The switch provides broad heat and pressure capabilities. The LS-1900 series is equipped with an SPST switch, 20 or 100 VA, which is selectable N.O. or N.C. by inverting the float in the unit stem. The LS-1900 series uses a 1/4" NPT process connection and 24" Teflon jacketed lead wires.