PTH-9CW Wifi Intelligent Infrared CO2 Detector Air Quality Detector Home Temperature And Humidity Meter

1. WiFi connection, temperature, humidity, carbon dioxide, buzzer alarm, Tuya Smart2. When the carbon dioxide concentration reaches the preset value, the buzzer will alarm3. Applicable to a variety of scenarios, real-time monitoring, in the car, public places, offices, bedrooms4. Back hook, easily fixed in the air5. Temperature/humidity dual detection, cold, warm, dry and wet, clear at a glance6. Temperature range: -10 to 40 degrees Celsius7. Measuring range: 40 square meters8. Battery capacity: 2400mah9. Power supply mode: TYPE-C/USB-C charging/built-in lithium battery10. Charging voltage: 5V/1A11. Dimensions: 98 x 90 x 40mmManual calibration:1. Press and hold three keys at the same time in the off state2. Enter the calibration state, and the screen will display a 200-second countdown3. Calibration is successful