Carbon Dioxide Concentration Meter, CO2 Monitor, CO/CO2 Concentration, Humidity, Temperature, Atmospheric Pressure, Altitude Function,

【6-in-1 Multi-Function Measuring Device】This CO2 monitor provides a safe and reliable air quality measurement and maintains a comfortable air environment. CO Measurement Range: 0-1000ppm, CO2 Measurement Range: 400-5000 ppm, Temperature Measurement Range: -10°C - 60°C (±2°C), Humidity Measurement Range: 5%-95% (±5%), Barometer Measurement Range: 300-1100 hpa, Altitude Meter Measurement Range: Above sea level + 9000 m - below sea level. 500m Equipped with a high precision sensor: The carbon dioxide concentration meter is equipped with an electrochemical sensor, and the principle of non-dispersion infrared absorption (NDIR), which detect the concentration of carbon dioxide in real time, with an accuracy of ±50 ppm. CO accuracy: ±10 ppm Barometer Relative Accuracy: 950-1050 hpa, ±0.12 hpa at 25 degrees Celsius Absolute Barometer Accuracy: 950-1050 hpa at 0℃-40℃, ±1 hpa Built-in Alarm: The carbon dioxide concentration measuring device notifies you of CO or CO2 presence and protects you at the right time. The CO threshold be set freely from 1 ppm to 999 ppm, and the CO2 threshold value be set from 500 ppm to 5000 ppm. When the threshold is exceeded, the display will flash and alarm will sound No Batteries & More Safety: You need to use it while charging without batteries, but it is much safer than operated ones. Summer car temperature reaches up to 90 degrees Celsius and -ion batteries will explode at high temperatures. You use this free monitor with confidence (Applications) Compact and lightweight, it be used in a variety of situations. be used at home, office, school, and even in the car. You use it on your desktop. It also be used to prevent poisoning accidents caused by sleeping in the snow

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