$84.00 to $138.00
  • Usually ships in 2-3 weeks



  • Bent Stem / Side Mount Design
  • Specific Gravity as low as 0.45
  • Stainless Steel or Brass Stem and Mounting
  • Stainless steel or Buna-N Float
  • Switch: SPST 20VA, N.O. (dry)
  • Electrical Termination: No. 22 AWG, 24˝ L., Teflon Lead Wires
  • Operating Temperatures
    • Stainless Steel: -40 to 300°F
    • Buna-N: Water to 180°F; Oil -40 to 300°F
  • Maximum Pressure
    • Stainless Steel: 100 PSI
    • Buna-N: 300 PSI
  • 1/8” NPT process connection
  • Mounting Attitude: Vertical ±30°
  • Approvals: U.L. Recognized


The Gems LS-77700 series are bent stem level switches designed to be mounted into the side of tanks and other vessels. Protruding just 3" into the tank, these float type switches perform in liquids with specific gravities as low as 0.45. The LS-77700 is U.L. Recognized.

The LS-77700 series is available with rugged stainless steel or brass stem and mounting components and stainless steel or Buna-N floats. All options offers broad heat and pressure capabilities. The LS-77700 is rated for temperatures to 300°F and pressures to 100 PSI with the stainless steel float or temperatures to 300°F and pressures to 300 PSI with Buna-N floats. All models are equipped with SPST switches that are N.O. The LS-77700 is available with two mounting options, Type I threads directly into an NPT boss while Type II mounts directly through the tank wall.