Pro CO (Carbon Monoxide) Analyzer with Low Pressure and High Temp Alarms


Price on request

SKU: 9621 Categories: ,

The Pro COTM Carbon Monoxide Analyzer with low pressure and high temperature alarms measures carbon monoxide (CO) levels in gases in the range of 0 to 100 parts per million (ppm). It can be used to measure the CO content in gas mixes that may be contaminated due to the introduction of CO from internal combustion engines or other devices where CO is a byproduct. This unit is designed to verify CO concentration in continuous air flow from an operating compressor. In Addition, the unit includes a High Temperature Alarm that will activate if the compressor’s air outlet reaches 350°F, and a Low Pressure alarm that will activate if the air pressure supplied to the unit drops below a set value (factory set at 100 PSI). The Analyzer is battery powered and includes an LCD display, red alarm light, Piezzo alarm and hinged clear water-resistant case. The Analyzer uses a Flow Meter/Regulator to deliver sample gas to the Sensor.

This analyzer comes in one of three options:

  • Rechargeable Lithium Battery (Part# 9621-LB)
  • Wall Plug-in (International) (Part# 9621-E)

Replacement Sensor

Carbon Monoxide Sensor Replacement 9501-300 & 9501-50

We have combined our Pro CO analyzer with a compressor low pressure and high temperature sensor that provides audible and visual alarms for all. This combo meets OSHA requirements for offshore commercial breathing air compressors and the Army Corp of Engineers spec. Audible alarm at 10 ppm CO, accuracy of +-0.1%, self powered by batteries, easy to operate, reliable and accurate Carbon Monoxide gas analysis.


  • Compressor Mounted Instrument
  • LCD Display
  • On/Off Switch
  • Rugged Weather Proof Housing
  • Requires Very Little Maintenance
  • Low Power Consumption
  • Long Life Electrochemical Sensor
  • Accurate to +/- 1%
  • Battery Test Function
  • Easy To Operate, Reliable and Accurate
  • Audible and Visual Alarms
  • High Temp Switch set at 350F
  • Pressure switch factory set @ 90psi (other settings available)


  • Display Accuracy: +/- 5% at Constant Temperature and Pressure
  • Sensor Type: Electrochemical
  • Expected Cell Life (Room Air & Temp): 60 Months
  • Range: 0-50 ppm Carbon Monoxide
  • Response Time: less than 50 seconds to 90% value
  • Operating Temperature: 41° to 104°F (5° to 40°C)
    Will work outside this range with decreased accuracy
  • Storage Temperature: 14° to 140° F (-10° to 60°C)
  • Operating Humidity: 15 to 90% RH, Non-Condensing
  • Power: (2) 9 Volt Battery or 110/230V power option

* All specifications are at ambient / sea level, 77 Degrees F (25 Degrees C)