Features 1、Real Time Monitoring: Real time monitoring and display of carbon dioxide concentration, air humidity, temperature per cubic meter, easy to understand air quality 2、LCD Screen: Large LCD screen display, real time display of various air data, clear numbers, easy to identify and read 3、Alarm Function: When the gas concentration exceeds the warning value, an alarm is automatically triggered, and the screen color is changed to remind the user 4、Easy to Install: It is small and portable, easy to carry, it does not take up too much space, and can be installed at home, office and classroom 5、Wide Application: Suitable for office, home, gymnasium and other usage scenarios CO2 concentration and air quality detection Specification Item Type: Air Quality Dector Model: 2CO1T Material: ABS Battery: 18650 1200mAh 3.7V (built in battery) Charging Power Supply: DC 5V 500mA Micro USB Purpose: Suitable for carbon dioxide concentration detection in offices, homes, gymnasiums and other usage scenarios CO2 Measurement Range: 400-5000 PPM ±50 ±5%PPM CO2 Measurement Accuracy: 1PPM TVOC Measuring Range: 0-2.0mg/m³ HCHO Measuring Range: 0-0.6mg/m³ Temperature Measurement Range: -10~50℃ Temperature Measurement Accuracy: ±2℃ Humidity Measurement Range: 0%~99%RH Humidity Measurement Accuracy: ±3%RH Package List 1 x Air Quality Detector(built in battery) 1 x USB Cable 1 x Manual