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Extech CO50 Desktop CO (Carbon Monoxide) Monitor
Extech CO50 Desktop CO (Carbon Monoxide) Monitor
Extech CO50 Desktop CO (Carbon Monoxide) Monitor
Price: $249.99

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Availability: Subject to availability
Product Code: CO50


Extech CO50 Desktop CO (Carbon Monoxide) Monitor

The Extech CO50 Desktop CO Monitor measures carbon monoxide (CO) concentration from 0 to 999 ppm utilizing an electrochemical sensor. It also monitors air temperature and relative humidity to better understand occupant comfort. A bright LED signals either green for active monitoring or red for a surpassed CO alarm threshold. An audible beeper alarm is engaged at 30 ppm and is able to be adjusted by the user. The CO50 Desktop CO Monitor can manually store up to 99 readings in its internal memory, be easily calibrated in fresh air, and features record and recall of maximum CO concentrations.

  • Simultaneously displays Carbon Monoxide (CO) concentration, air temperature, and relative humidity readings with date (year, month, day) and time
  • Visibly bright LED indicates active monitoring (green) or surpassed CO alarm threshold (red)
  • Extra loud audible beeper alarm level meets UL 2013 Standard (>85 dB @ 3 meters); default alarm threshold at 30 ppm (user adjustable)
  • Designed with Electrochemical CO sensor
  • Record/Recall Max reading for CO concentration
  • CO calibration function in fresh air
  • Internal memory for manually storing up to 99 readings with recall function


  • Extech CO50 Desktop CO Monitor
  • Universal AC adapter (100 to 240 V) with multiple plug types

Warranty Information

The Extech CO50 Carbon Monoxide Monitor carries a 1-year warranty.

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