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Extech CO50: Desktop CO (Carbon Monoxide) Monitor

Measures Carbon Monoxide concentration, Air Temperature and Humidity

View Datasheet > CO50


The CO50 is a desktop CO Monitor which measures and displays carbon monoxide concentration, air temperature and humidity simultaneously. The CO50 features visibly bright LED lights which indicate active monitoring (green) or a surpassed CO alarm threshold (red). The meter also features an extra loud audible beeper alarm, electrochemical CO sensor, record/recall Max reading for CO concentration and CO calibration function in fresh air. Product is complete with Universal AC adapter (100V-240V) with multiple plug types (US, EU, UK, AUS) and a user’s manual.

Additional information

Carbon Monoxide (CO)

Range: 0 to 999ppm Resolution: 1ppm Basic Accuracy: ±2ppm

Temperature (Air)

Range: 14 to 140°F (-10 to 60°C) Resolution: 0.1°F/°C Basic Accuracy: ±1.2°F/0.6°C

Relative Humidity

Range: 10 to 90%RH Resolution: 0.1%RH Basic Accuracy: ±5%RH @ 25°C


6.1 x 3.4 x 3.2" (155 x 87 x 81mm)/ 5.8oz (165g)

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