Starting at $89.00
  • Usually ships in 2-3 weeks



  • Durable Enough to Handle Harsh Environments
  • TPE Over-Molded Electronics
  • Operating Temperature: -40 to 230°F
  • Operating Pressure: 0 to 250 PSI
  • Output: Sink 40 mA max., up to 30 VDC
  • Three 22 AWG Lead Wires
  • Polysulfone (ELS-950) or Brass (ELS-950M) Housing
  • Prism: Polysulfone (ELS-950); Fused Glass (ELS-950M)
  • CE, UL file No. E108913
  • IP66/67 Rating
  • RoHS Compliant


The ELS-950 and ELS-950M Series represents Gems' smallest electro-optic level sensors developed to monitor a broad range of media including OHV type fluids. These switches are excellent for industrial OEMs requiring a solid-state sensor for small space and high temperature environments.

The ELS-950 and ELS-950M Series UL approved design features a TPE over-molded electronics insert, TPE insulated wires, and fluorocarbon O-ring seals that create a watertight, environmentally resistant assembly, ideally suited for use in harsh environments. Both series offer excellent temperature and pressure capabilities. With its brass housing and fused glass prism, the ELS-950M is built to be more durable in challenging environments, including outdoors and engine bays.

Applications for the Gems ELS-950 and ELS-950M Series flow switches:

  • Coolant reservoir monitor and warning
  • Medical diagnostic, sterilizer, washers and dialysis equipment
  • Low lubricant warning on machine tools, generator sets, on- or off-highway vehicles
  • Low level warning in hydraulic reservoirs
  • Plastic overflow bottles, plastic radiators