Description: This product is an air quality monitor that detects Carbon dioxide (CO2),Temperature, and Humidity. it combines sensors real-time monitoring of Carbon dioxide (CO2),temperature, and humidity on its display. Common Screen display,Test variables:Carbon dioxide (CO2),temperature, humidity. CO2 Detector. It displays the current CO2 data, as well as the temperature and humidity data,according to the CO2 content. Large 1000mAh capacity Lithium battery.5V Micro USB charging,energy saving. Compact and portable, can be placed in the kitchen, bathroom, living room, desk, coffee table, and other environments. Specification: Display method:Common Screen display Atmospheric pressure: 86Kpa - 106Kpa Detection method for CO2 : Infrared (NDIR) Sampling time: 1.5 seconds Product Size: 96x33mm/3.78x1.30in Detection temperature: -10°C to 50°C; Relative humidity: 20% - 85% Storage temperature: -10°C to 60°C; Concentration unit for CO2:PPM Power source: Lithium battery with 1000mAh capacity; 5V DC power charging via micro USB port Package Includes: 1 x Air Quality Monitor 1 x USB Charging Cable 1 x Manual Note: Avoid covering the air intake areas during use to avoid inaccurate measurements. Avoid use of solvents to clean the product as residual fumes will skew air quality readings. Avoid water or other liquids near the product to avoid electrical damage.