Extech Digital Thermometer

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Alternately displays carbon monoxide (CO) concentration, air temperature, and relative humidity readings (cycles approximately every 6 seconds)
Visible bright tri-colored (green, yellow, red) LED alarm indicator
Adjustable audible alarm for readings exceeding one of the selected ranges: 25-PPM, 30-PPM, 35-PPM, 50-PPM, 100-PPM, or 200-PPM

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The Extech CO30 displays carbon monoxide (CO) concentration, air temperature, and relative humidity. Programmable audible alarm, with high decibel beeper, sounds when CO concentration rises to unsafe levels. Can be wall mounted or used on a desktop close to areas of concern.

Alternately displays carbon monoxide (CO) concentration, air temperature, and relative humidity readings (cycles approximately every 6 seconds)
Visible bright tri-colored (green, yellow, red) LED alarm indicator
Adjustable audible alarm for readings exceeding one of the selected ranges: 25-PPM, 30-PPM, 35-PPM, 50-PPM, 100-PPM, or 200-PPM
Zero re-calibration function
Manual temperature and relative humidity compensation (adjustable)
CO calibration function in fresh air
Low battery indicator
Complete with universal AC adapter (including US, EU, UK, and AU plugs) and 4 AAA batteries

Extech Digital Thermometer

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