UEi™ Gas Detector, Handheld Carbon Monoxide, 0 - 999 ppm, Alarm: Audible, Visual, LCD, LED Display, 1 ppm Resolution, 32 - 104 deg F Operating, 9 V, Standard Alkaline Battery, Yellow Housing, Includes: Detector, Clip-on Soft Carrying Case and 9 V Battery
- Extended sensor life
- Detects CO levels from 0 to 999 ppm
- Tri-color LED warning indicates
- Auto zero activates upon turn on
- Low battery indicator
- Backlit display