Multiple Functions: This air quality detector adopts semiconductor, infrared, and electrochemical detection technologies, providing comprehensive testing functions for CO2, TVOC, HCHO, PM2.5, and PM10 Built in Battery: Featuring a built in 1200mAh rechargeable battery, this air quality detector can operate continuously for 300-360 minutes. With a Type C charging port, it is conveniently rechargeable via USB power sources Easy Reading: The household air quality tester comes with a 2.8 inch HD LCD display screen, displaying real time data for 9 data points, with different colors indicating the air quality status, making it easy to read Accurate Detection: Designed with openings on both sides and the back, this air quality detector ensures more accurate real time detection through convective airflow, making it suitable for more scenes and locations Sturdy and Portable: Made of sturdy ABS material, this air quality detector housing is robust, wear resisting, and long lasting. Its lightweight and portable design makes it suitable for use in any environment Spec:
Item Type: Air Quality Detector
Display: LCD Color Screen Digital Display
Working Voltage: 3.7V
Charging Method: DC 5V 500mA Type C USB
Sensor: PM2.5 Infrared Sensor, Semiconductor Sensor
Battery: 1 x 3.7V Rechargeable Li Battery 1200mAh (Built in)
Product Size: 90 x 70 x 35mm / 3.5 x 2.8 x 1.4in
Product Weight: Approx. 130g / 4.6oz
Charging Time: 4 hours
Standby Time: About 300-360 minutes
PM2.5: 0-999ug/m³
PM10: 0-999ug/m³
HCHO: 0-9.999mg/m³
TVOC: 0-9.999mg/m³
CO2: 400-5000PPM

How to Use:
Press once to change the temperature, press twice to turn on or off the sound, press three times to enter calibration interface, press four times to enter screen off mode (press once to wake up)

Package List:
1 x Air Quality Detector
1 x USB Cable
1 x User Manual