Exhaust Pyrometers
Exhaust Pyrometers

MODEL 10705146 AND 10705147

  • Single or Dual Port Reading 
  • 2% Accuracy 
  • Sealed Construction 
  • Temperature Compensation 
  • Easy to Read Scales



The Single 10705147 and Dual 10705146 Port Pyrometers monitor exhaust temperatures in all types of engines. The Dual Port Pyrometer can monitor each bank of a V-type engine, allowing you to compare readings at all times. Both pyrometers feature an easy-to-read illuminated dial with scales in both Fahrenheit and Celsius. They require no outside power (except for dial lighting). Spring loaded jewels and alloy pivots increase durability. Murphy offers pyrometer accessories such as thermocouples and wire lead assembly.



Excessive exhaust temperature is a major damaging factor to all engines. The best way to monitor this temperature is with the use of a pyrometer. Excessive exhaust temperature is caused by an upset fuel/air ratio or more fuel in the engine than there is air to support it. This condition can occur as a result of over throttling, a dirty air cleaner, different fuels, a malfunctioning fuel system, change of altitude, an out of tune engine and many other causes. But whatever the cause, a pyrometer indicates this condition before serious damage occurs. Suitable for stationary or mobile engines, power units, agricultural and construction equipment, as well as marine and trucking.



  • Large sweep scales for maximum legibility
  • Internal illumination for night use
  • Accuracy: 2% full scale
  • Sealed housing
  • Ambient temperature compensation
  • Calibrated permanently at 2/3 scale
  • Flush type mounting on any plane


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