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Murphy 8-18V Electric Voltmeter Swichgage EGS21VM-12

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Murphy 8-18V Electric Voltmeter Swichgage 12 VDC - EGS21VM-12

Product Condition: NEW
Murphy Swichgage Electric Voltmeter 8-18V EGS21VM-12

Availability: In stock


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The Murphy 8-18V Electric Voltmeter Swichgage 12 VDC EGS21VM-12 features high impact polycarbonate lens with stainless steel bezel. The EGS21VM-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. Exceeds the rigid SAE J1810 standard for reliable operation under tough off-road and power unit environments.


  • Polished Stainless Steel
  • 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 switch output


  • Part No.: EGS21VM-12
  • Range: 8-18 Volts
  • 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); dual scale with mirror band to reduce parallax reading errors
  • Swichgage instrument Sensor: PowerHall® Effect; outputs ground signal (sinking output) rated: 300 mA continuous (EGS21 models).
  • 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
  • Operating Temperature: -40 to 185°F (-40 to +85°C)
  • Storage Temperature: -77 to 185°F (-60 to 85°C)
  • 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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