Description:Size: approx. 90 *70 *30mm as3.54 *2.75 *1,18 inchScreen: 2.8 inchScreen type: LCDCO2 detection range: 400-5000PPMSensitivity when detecting carbon dioxide: 1PPMTemperature measuring range: 0–50Total levelTemperature measurement accuracy:total 1777; 1Total levelMoisture measurement range: 0%~ 99% RHInaccurate moisture measurement at the level ofLoading modes: TYPE-C 2VBattery: Built-in lithium battery 1200mAhFeatures:3-in-1: Can act simultaneously as carbon dioxide concentration detector, thermometer and hygrometer.Built-in 1200mAh lithium battery, use the TYPE-C charging cable to charge it.Color screen: current CO2 data, temperature and humidity. The colored ring changes depending on the carbon dioxide content.Press and hold the On-Off button for three seconds to turn on and off. It automatically detects carbon dioxide2.Fine workmanship and stable performance.More accurate and reliable.Easy to use.Long service life.Included in delivery:1pc x carbon dioxide detector1pc x Data Cable1pc x manual