Features 1、Carbon monoxide gas meter are widely used in science and industry to detect the concentration of carbon monoxide gas. 2、Professional and accurate measurement, can continuously monitor the CO gas concentration in the surrounding environment. 3、Sound alarm works when CO gas concentration reaches the level of the alarm. 4、High portable CO gas tester with compact size and light weight is easy to carry and operate. 5、Large LCD color display and ℃/℉ switch. Can set concentration of alarm value. Specification Condition: 100% Brand New Item Type: Carbon Monoxide Meter Material: ABS Color: As shown in the picture Weight: Approx.147g/5.2oz Sensor Type: Stable electrochemical gas ratio (CO) Detection Gas: Carbon monoxide (CO) Temperature measurement: ambient temperature Display Unit: CO: ppm, temperature: °C/℉ Measuring 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 and light alarm Alarm Point: 24PPM preset (adjustable) Battery Type: 3 x AAA 1.5V alkaline batteries (Not included) Working Temperature: 0~40℃, relative humidity 1%~99% Storage Temperature: -30~60℃, relative humidity: 1%~99% Package List 1 x Carbon Monoxide Meter 1 x Instruction Manual