The Fluke CO-220 carbon monoxide meter provides quick, accurate CO measurements from 0 to 1000 ppm with 1 ppm resolution and 5% accuracy. Backlit LCD for easy viewing in dim lighting. Auto sensor zeroing and self-test on startup. CO level beeper increases frequency with rising CO levels; can be silenced.

Max hold function stores and displays maximum CO level. Auto power-off after 20 minutes extends battery life. Replaceable electrochemical sensor with 3-year typical life and 1-year calibration cycle. Includes C50 soft carrying case and 9V battery (500-hour typical life). Applications include boiler rooms, parking garages, and indoor air quality monitoring.