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Carbon Monoxide (CO): 0 to 999ppm
Accuracy: ±20% (0 t0 100ppm); ±15% (100 to 500ppm)
Resolution: 1ppm
Automatic Calibration: 0ppm in fresh air
Sealed Box Calibration: uses 100 and 500ppm standards
CO Alarm: Audible/Visual
CO Alarm Settings: 25ppm (default), 30, 35, 40, 45, 50, 70, 100, 200ppm
Power: 3 AAA batteries
Dimensions: 6.9 x 1.9 x 1.1" (175 x 47 x 28mm)
Weight: 5.6oz (159g)
