AQM-345 Smart Indoor Air Quality Monitor CO2 Meter, TVOC, Humidity, Temperature, PM2.5, PM1.0 with Relay Output APP Control Meter for Home Offices Schools

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Smart carbon dioxide tester analyzer is made of precise NDIR CO2 sensor, Can accurately monitor CO2 concentration, PM1.0, PM2.5, TVOC, ambient humidity, and temperature values in real-time.

User can connect the meter to a mobile device via APP so you can check current air quality anytime.


  • Wi-Fi function for remote monitoring
  • Alarm function with color indicator display
  • CO2 NDIR Sensor
  • Switchable Temperature unit (°C/°F)
  • Backlight can be adjusted and disabled
  • Audible alarm function with disable feature

    Note to Buyer(s): Wi-Fi must be 2.4GHz to work with the meter and APP


  • Measurement Range:
    • Temperature: -20~60°C; ±2°C
    • Humidity: 5%~95%RH; ±5%RH
    • CO2: 400~5000ppm
      • Resolution 1ppm
      • Accuracy ±50ppm or ±5% of reading
    • TVOC: 0~20mg/m³
    • PM1.0: 0~500μg/m³
    • PM2.5: 0~500μg/m³
  • Working environment: 0~50°C; 0~95%(non-condensing)
  • Input Voltage: DC 12V/2A
  • Weight: approx. 500gms
  • Size: 180 x 39 x 119mm
  • Single Output Wiring: RS485/Relays for CO2, TVOC, PM1.0. PM2.5, and Humidity signal output

Set Includes:

  • 1 x Smart Air Quality Monitor
  • 1 x DC 12V Charger
  • English Instruction Manual
  • Standard factory packaging

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