LiebeWH Air Quality Monitor Indoor 18 in 1 CO2 TVOC HCHO PM2.5 PM10 Indoor Air Quality Monitor Temp Humid Detect Tester Battery Powered Data Storage Black

Specification: Item Type: Air Quality Meter Model: ZN-MT32 Temperature Range: 0-70℃ Display: LCD screen and backlight Operating Voltage: DC5V 1A TYPE C USB Operating Current: 180mA Sensors: PM2.5 infrared sensor, semiconductor sensor Battery: 1 x 3.7V rechargeable li ion battery 2000mAh Size: Approx. 90 x 70 x 35mm / 3.54 x 2.76 x 1.38in Material: ABS Color: Black How to Use: 1. Single click on the main interface to switch between Celsius and Fahrenheit. 2. Double click to turn on or off the sound. 3. Triple click to enter the calibration interface. 4. Quadruple click to enter the screen off mode (single click to turn on the screen in screen off mode). 5. Quintuple click to enter the curve interface (single click to switch in the curve interface, quintuple click to return to the main interface). 6. Sextuple click to enter the PM2.5 comparison interface (double click to record the first group of 30-second evaluation data, double click again to record the average data of 2 groups of 30 seconds, quintuple click to return to the main interface). 7. Septuple click to enter the temperature adjustment interface (single click to increase by 1 degree Celsius, double click to decrease by 1 degree Celsius, quintuple click to exit or exit the interface after five seconds of inactivity). Package List: 1 x Air Quality Meter 1 x USB Cable 1 x User Manual

• Comprehensive Detection: Using advanced semiconductor and infrared sensing technology, this monitor accurately measures Air Quality Index, CO2, HCHO, TVOC, multiple particle sizes including PM0.3, PM1.0, PM2.5, PM5.0 and PM10, with real-time data curves and comparative particulate analysis.
• Extended Operation: Equipped with a 2000mAh rechargeable battery providing up to 7 hours of continuous usage, this device includes a Type-C USB charging port for convenient power replenishment.
• Clear Data Visualization: Features a 2.8-inch high-definition display that shows 13 types of measurements simultaneously, with color-coded indicators for intuitive understanding of current air conditions.
• High Sensitivity Sensors: Incorporates precisely calibrated detectors capable of measuring CO2 at 1PPM resolution, TVOC at 0.01mg/m³, HCHO at 0.01mg/m³ and particulate matter at 1μg/m³ for reliable readings.
• Advanced Data Management: Stores and compares particulate ratios over time, displays historical trends for key metrics, and allows computer connection for data export with capacity for extensive recording periods.