Indoor Air Quality Monitor Pm2.5

We are Manufacturing, Exporting, Distributing and Supplying Indoor Air Quality Monitor PM2.5 in Jaipur, Rajasthan, India. Built-in professional duct sensor with optical IR LED sensing method. Real-time monitor indoor PM2.5 concentration.
Built in high accuracy temperature & RH sensor, monitor indoor air
temperature & RH. Using our unique technology of compensating method, and up to nine calibration points, to guarantee IAQ -PM2.5 measurements accuracy in different environments.
LCD displays the real-time measurement and moving average value of PM2, as well as real-time temperature and RH measurements.
Special design six backlit LCD for six levels of PM2.5, in straight and clear read.
long-term security power supply: 5VDC with a power adaptor
Option: RS485 interface with Modbus protocol
Users can know very well the indoor PM2.5 concentration, and can easily select an air purifier/air cleaner. Not only see a visible effect of indoor air clean but also have a reasonable use of an air cleaning device