DM73A 4.3 Inch TFT LED Digital Screen Portable Laser PM2.5 PM1.0 PM10 Temperature Humidity HCHO TOVC AQI Detector Intelligent Multifunction Detect Tool

Features:
This detector is suitable for indoor and outdoor air quality, muti-envornmental air quality monitoring for furniture, decorations, cars, and so on.
4.3 inch LCD display, 480*270 pixels, simple and elegant, with high test accurancy, stable performance, with clear and easy to understand digital display, let you know the current air quality at a glance.
Small and portable but with big wisdom, compact, lightweight and cost-effective portable PM2.5 detector to escort your healthy environment.
Built-in lithium battery and usb rechargeable, charge and use, lasting battery life, not afraid of power failure.
On-board fan to draw in ambient air for more accurate real-time results.
Functions: low battery warning, time setting, history record.
Test variables: PM2.5, PM1.0, PM10, formaldehyde, TVOC, temperature, humidity, you can get the results you care about.
There are four colors to indicate different air quality: green means good, yellow means slight, red menans moderate, purple means serious.