HCHO Comparison: This air quality tester does not require WiFi and BT to display time. Features HCHO comparison function, it can compare HCHO comparison values in various places. Intuitive Screen: The CO2 detector supports animated customization and color coded reminder display when values exceed preset thresholds. Long Battery Life: The air quality tester has built in 2000mAh lithium cell, can run continuously for 300-360 minutes after being full charged. High Precise Sensor: The air quality meter is equipped with semiconductor and infrared dust sensors, ensuring accurate detection and measurement of air quality index. Multi Functional: This air quality detector can detect air quality index, CO2, HCHO, TVOC, PM2.5, PM10, temperature, humidity, with curve function and HCHO comparison function, ensuring the safety of family members with laboratory level accuracy. Specification:
Item Type: Air Quality Tester
Material: ABS
Model: ZN-MT14
Detection Functions: Time, Air Quality Index, CO2, HCHO, TVOC, PM2.5, PM10, Temperature, Humidity, Curve Function, HCHO Comparison
Sensors: Semiconductor Sensor, Infrared Sensor
Display: Screen
Battery: 1 x 2000mAh Lithium Cell (Built in)
Additional Features: 24 Hour Historical Data Curve Display
Temperature Setting: Single Click to Switch Temperature, Double Click for Mute/Unmute, Triple Click for Calibration, 5 Clicks to Enter Curve/HCHO Setting

How to Use:
1. Single click on the main interface to switch the temperature.
2. Double click to turn on/off the sound.
3. Triple click to enter the calibration interface (calibration interface does not support operation unless the device is turned off).
4. Click 4 times to enter the sleep screen (single click on the sleep screen to wake up).


PackageList:
1 x Air Quality Tester
1 x Manual