Air Quality Monitor 1. Hundreds of ventilation holes in the rear not only accelerate the convection between the air and the machine, thus realizing effective detection, but also provide a good heat dissipation effect.2. The electrochemical detection module of has good accuracy, stable performance, strong anti-interference ability, low consumption and long cabinet life.3. The smart carbon dioxide value tester gas analyzer uses an air semiconductor TVOC sensor to monitor the temperature and humidity of the air quality.4. For everyone, It's necessary to know the air quality of the place where you live.5. It's easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel. 1. Hundreds of ventilation holes in the rear not only accelerate the convection between the air and the machine, thus realizing effective detection, but also provide a good heat dissipation effect. 2. The electrochemical detection module of has good accuracy, stable performance, strong anti-interference ability, low consumption and long cabinet life. 3. The smart carbon dioxide value tester gas analyzer uses an air semiconductor TVOC sensor to monitor the temperature and humidity of the air quality. 4. For everyone, It's necessary to know the air quality of the place where you live. 5. It's easy to carry the intelligent air quality monitor that can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel. Specification: Screen resolution: 240*240 Response time: Less than 1s Test temperature range: -10 Celsius to 70 Celsius Humidity test range: 0-99% RH Working voltage: 5V/1A adapter charging Maximum power: Charging current 600mA, 3.7V lithium battery power supply Battery capacity: 1200mAh Battery type: Lithium battery Charging : USB Charging time: 1 hour Colour:black Material:ABS Size:92 x 72 x 37mm Package Contents: 1 * Air Quality Monitor 1 * Usb cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.