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/POOR)and humidity(DRY/COMFORT/WET). Data Report: Comes with a USB cable, makes it accessible to export the history data to your computer for further analysis. Easy to Use: Built-in 3000mAh rechargeable lithium battery that runs about 6-8 hours on a full charge. Specifications: Dimensions: 6.9 x2.6 x 1.2 in. Battery capacity: 3000mAh Battery voltage: 3.7 VDC Battery life: 6-8h on a full charge Input voltage/current: DC5V, 1A Operating environment: 0-50℃(32-122℉); 0-90%RH Atmospheric pressure: 1 atm standard atmosphere Temperature measuring range: 0-50℃(32-122℉) Accuracy: ±1℃(±1.8℉) Humidity measuring range: 0-90%RH Accuracy: ±5%RH PM2.5 Sensor: Laser particulate matter sensorMeasuring range: 0-999ug/m³Resolution: 0.01 ug/m³(0-9.99ug/m³);0.1 ug/m³(10-99.9ug/m³);1 ug/m³(100-999ug/m³)Accuracy: ±10 ug/m³(0~100 ug/m³);±10%(100~500 ug/m³)