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Tongdy , EM21 Series
Indoor Air Quality Monitor

Tongdy , EM21 Series<br> Indoor Air Quality Monitor
Tongdy , EM21 Series<br> Indoor Air Quality Monitor - Image 2
Tongdy , EM21 Series<br> Indoor Air Quality Monitor - Image 3

Tongdy , EM21 Series

Indoor Air Quality Monitor

Professional design of IAQ monitor in business B-level Pm2.5/pm10, 

CO2, TVOC, HCHO or CO, Light or Noise sensing. In-wall or on-wall mount types available RS485/WiFi/Ethernet/LoraWAN interface options For LCD monitor, the brightness of screen is automatic changed according with the room lightness.

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EM21 Indoor Air Quality Monitor

Simple and Elegant

  •  LED Tri-colored lights Visible air quality level
  •  Compact & simple design
  •  Upload real-time data to cloud service, and display history chart via a software platform

Unique Display Design

  •  Show the detailed air quality on the screen Display the
  •  real time values and 24-hour average of PM2.5, PM10,TVOC, CO2
  •  Optional HCHO, CO, noise, lightness
  •  Turn off or turn on screen by touch button

APPLICATION

  •  Widely used in commercial or residential spaces
  •  Commercial Space School Residential Hotel

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Indoor Air Quality Monitor”

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