Pressure Gage and Swichgage Instruments
Pressure Gage and Swichgage Instruments


  • Combination indicating gage and critical pressure limit switches
  • High and low pressure limit contacts are visible and adjustable
  • Panel and surface mount versions
  • Indicating-only Murphygage® available
  • Latching control relay versions available


The OPL-series pressure Swichgage instruments are combination pressure indicating gages with adjustable low and high limit switches. Limit switches can be wired directly to electric pilot circuits to operate alarms, shutdown or start/stop of engines and electric motors.


Surface mount or panel mount enclosure is available for most versions. All versions feature a 4-1/2 in. dial for easy viewing. Adjustable limit switches are accessible from front of the Swichgage instrument. Limit contacts have self-cleaning motion to enhance electrical continuity.


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