1、Lightweight And Portable: The detector is small in size and light in weight, making it easy to carry around for measurement and use. 2、Easy To Install: The carbon dioxide detector does not take up too much space and can be installed at home. 3、Intelligent Color Screen Display: Clear numbers, easy to identify and read, very convenient for you to observe the testing data. 4、Easy To Use: Real time monitoring and real time display of carbon dioxide concentration per cubic meter, very easy. 5、Multifunctional Detector: It can detect dioxide, air quality, formaldehyde concentration, temperature and humidity. Item Type: Carbon Dioxide Detector Material: ABS Model: ZN-AZ-2CO3 Battery: 18650 1500mAh 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: 400-6000 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 1 x Carbon Dioxide Detector 1 x USB Data Cable 1 x Manual