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Murphy Electric Pressure Swichgage EGS21P-100-12

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Murphy 0-100 PSI Electric Pressure Swichgage 12 VDC - EGS21P-100-12

Product Condition: NEW
Murphy Electric Pressure Swichgage 100 PSI (689 kPa) EGS21P-100-12

Availability: In stock


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The Murphy 0-100 PSI Electric Pressure Swichgage 12 VDC EGS21P-100-12 takes the electric gage to new heights with proven state of the art technology and reliability. The EGS21P-100-12 Swichgage instrument has all of the features of the EG21 Series Gage plus an adjustable set point PowerHall Effect switch output for operating alarms or equipment shutdown. The trip point is adjustable over 90% of the scale and has a set point indicator visible from the gage face. Now you can have both, the ease of electric gage installation and the reliable switching of Murphy’s famous Swichgage instrument.



  • EG Air Core movement design
  • Technological improvements in lighting, accuracy in reading and wiring installation
  • Assurance of highest reliability and service
  • Environmentally sealed design
  • Exceeds the rigid SAE J1810 standard
  • Corrosion-resistant materials
  • Desirable for marine and other environmentally sensitive applications
  • Soft, non-glare dial and pointer illumination by “cold light” LED
  • Adjustable set point PowerHall Effect



  • Part No.: EGS21P-100-12
  • Range: 100 psi (689 kPa)
  • Power Input: 12 VDC
  • Case: Polyester (PBT), impact and weather resistant with screw-on mounting clamp
  • Bezel: Polished 316 stainless steel standard
  • Lens: Clear Polycarbonate and UV stabilized
  • Air Core Movement: Silicon dampened pointer
  • Dial: Black with white markings; back-lite (marking becomes red when illuminated)
  • Swichgage instrument Sensor: PowerHall Effect; outputs ground signal (sinking output) rated
  • Swichgage instrument Set Point Indicator: Visible on mirror band (scale); adjustable from the back of the unit (1/16 in. hex type wrench)
  • Wiring: Plug connector with wire leads, 18 AWG (1.0 mm2), 8 in. (203 mm) long
  • Over Voltage (Gage Movement): Withstands 200% of nominal system voltage for 5 min. Meets SAE J1810
  • Reversed Polarity (Gage Movement): Withstands reversed battery terminal polarity indefinitely within operating temperatures
  • Environment and Test: Meets SAE J1810 standards

Additional Information

Product Condition NEW
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