BGGJJ Air Quality Monitor, ST9700 Handheld Carbon Monoxide Meter featuring CO Gas Air Quality Tester Monitor Detector Gau

Auto power off in 10 minutes without any operat. Can set concentrat of alarm value. Specificats. Material: ABS. Color: Red. Stablized Electrochemical Gas Specific (CO). Carbon Monoxide (CO). Ambient Temperature. CO: ppm, Temperature: /. CO: 0-1000PPM, Temperature: 0-50 / 32-122. CO: 1PPM, Temperature: 0.1 / 0.1. CO:±5% or ±10PPM, Temperature: ±1.5. Sound & Light Alarm. Alarm Point 24PPM Preset Adjustable). 3 * AAA 1.5V Alkaline Batteries (NOT Included). 0-40, Relative Humidity 1%-99%. -30-60, Relative Humidity: 1%-99%. 13.5*5*3.5cm/5.31*1.96*1.37in. 115g. 19.5*7.7*3.5cm/7.67*3.03*1.37in. 156g. Item color may show sight aberrat due to different shooting light and monitor display. Battery is NOT included. Packing list. 1* Carbon Monoxide Meter. 1* User Manual.