Pressure Switch-Transmitter- SOR 805QS

The process instrumentation industry standards define devices rated “explosion proof” as those with an enclosure capable of containing an explosion of a specified gas, vapor or dust which may occur within it. Agency listings are required in order to market any pressure switch device as “explosion proof.” See below for our selection of explosion proof pressure switches.

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CTH Industrial Controls can provide you with service and start up assistance for SOR Inc. Technologies.



The rugged, loop-powered 805QS pressure switch-transmitter provides “set it and forget it” dependability in mid and upstream oil and gas production applications. The 805QS pressure switch-transmitter works well in adverse environments and hazardous locations where space is limited.

The 805QS is built tough and works well in applications where low-cost, discrete and continuous output monitoring is preferred. Switch set points and zero/span are all field adjustable via the optional SOR Calibration Kit with USB communication cable.

  • Compact, 316SS, hermetically sealed enclosure
  • Stainless Steel sensor, no O-ring
  • Solid State Relay output
  • 4-20 mA or 1-5 VDC output
  • 0.25% continuous output accuracy
  • Explosion proof
  • EMI/RFI protection
  • NEMA 4X, IP 66 housing
  • FM and ATEX certified for hazardous locations in U.S., Canada, and Europe
  • Dual Seal version available
  • Local Indicating Display option available
  • The response time of Continuous output is <= 5 ms
  • A response time of Solid State Switch output is typically <= 5 ms
  • Absolute Pressure range options