Temtop P20 Household PM2.5/Temp/Humidity Air Quality Monitor

P20 Air Quality Monitor is a simple but powerful air quality detector. The Air Quality Detector provides exactly what you need to stay on top of your home air quality levels - no more, no less. It allows you to take a reading of the PM2.5 levels, temperature and humidity. Powered by an internal 3000 mAh rechargeable lithium battery, it can run about 6-8 hours on a full charge. Key Feature: 3 in 1 Thermometer, Hygrometer and PM2.5 Air Quality Monitor: Accurately tells you temperature & humidity and PM2.5 values, current date and time, ideal for the management of room, office, hotel, laboratory and hospital.  Max & Min Records: Digital thermometer displays MAX & MIN humidity, temperature(℉/℃ Optional) and PM2.5 records in real-time; also shows the PM2.5 histogram in the past 12 hours, allowing you to adjust thermostat or humidifier or air purifier in time. Air Comfort Indicator: Smart design with face icon indicates the surrounding air condition for PM2.5 (GOOD/FAIR/POO