The carbon monoxide gas detector is a portable detector for detecting carbon monoxide(CO) gas. It can continuously monitor the CO gas concentration in the surrounding environment, once the gas concentration reaches the level of the alarm, the alarm will sound and light. It is widely used in petroleum, chemical, coal, metallurgy, paper, fire, municipal, telecommunications, food, textile and other industries. Features: Carbon monoxide gas meter are widely used in science and industry to detect the concentration of carbon monoxide gas. Can continuously monitor the CO gas concentration in the surrounding environment. Sound alarm works when CO gas concentration reaches the level of the alarm. High precision portable CO gas tester with compact size and light weight is easy to carry and operate. Professional and accurate measurement. Large LCD color display and ℃/℉ switch. Can set concentration of alarm value. Auto power off in 10 minutes without any operation. Specifications: Material: ABS Color: Red Sensor Type: Stablized Electrochemical Gas Specific (CO) Detection Gas: Carbon Monoxide (CO) Temperature Measurement: Ambient Temperature Display Unit: CO: ppm, Temperature: ℃/℉ Measurement Range: CO: 0～1000PPM, Temperature: 0～50℃ / 32～122℉ Resolution: CO: 1PPM, Temperature: 0.1℃ / 0.1℉ Accuracy: CO:±5% or ±10PPM, Temperature: ±1.5℃ Response Time: <60s Alarm: Sound & Light Alarm Alarm Point: 24PPM Preset (Adjustable) Battery Type: 3 * AAA 1.5V Alkaline Batteries (NOT Included) Operating Temperature: 0～40℃, Relative Humidity 1%～99% Storage Temperature: -30～60℃, Relative Humidity: 1%～99% Item size: 13.5*5*3.5cm/5.31*1.96*1.37in Item weight: 115g Package size: 19.5*7.7*3.5cm/7.67*3.03*1.37in Package weight: 156g Note: Item color may show sight aberration due to different shooting light and monitor display. Battery is NOT included. Packing list: 1* Carbon Monoxide Meter 1* User Manual