Temtop P20 Household PM2.5 Air Quality Monitor

 Air Quality Monitor Temtop P20 For PM2.5/Temp/Humidity Multipurpose device  3-IN-1 indoor air quality, monitor accurately temperature in Celsius and Fahrenheit, also measure humidity level and the concentration of  PM2.5.ug/m³ with a chart to monitor the level of PM2.5 in the last 12h hours.  It is a portable testing device and can be used a wall-mounted at home or with table support anywhere in the house, office, school etc... With a 24-hour monitoring histogram, you will see the changes of PM2.5 directly. Free shipping in USA. Worldwide fast shipment. 24/7 Online Support. 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 pas