1. WiFi connection, temperature, humidity, carbon dioxide, buzzer alarm, Tuya Smart
2. When the carbon dioxide concentration reaches the preset value, the buzzer will alarm
3. Applicable to a variety of scenarios, real-time monitoring, in the car, public places, offices, bedrooms
4. Back hook, easily fixed in the air
5. Temperature/humidity dual detection, cold, warm, dry and wet, clear at a glance
6. Temperature range: -10 to 40 degrees Celsius
7. Measuring range: 40 square meters
8. Battery capacity: 2400mah
9. Power supply mode: TYPE-C/USB-C charging/built-in lithium battery
10. Charging voltage: 5V/1A
11. Dimensions: 98 x 90 x 40mm

Manual calibration:
1. Press and hold three keys at the same time in the off state
2. Enter the calibration state, and the screen will display a 200-second countdown
3. Calibration is successful