AQM-385 Carbon Dioxide CO2 Monitor 0~5000ppm Range Large Colored LED Screen Display IAQ Meter Air Quality Tester NDIR Sensor

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Presenting the Carbon Dioxide Monitor featuring a spacious LED screen display that offers clear visibility. Equipped with a CO2 chart trend display, it provides valuable insights into CO2 levels over time. The monitor's brightness is easily adjustable to suit your preferences. Utilizing a dual-beam NDIR sensor, it ensures accurate and reliable measurements. This desktop CO2 monitor not only offers precise functionality but also boasts a stylish design that enhances any workspace aesthetic.


  • Wide LED Digital screen display
  • Three-colored LED indicator
  • Adjustable brightness level
  • Dual-beam NDIR technology CO2 sensor
  • Stylish mini desktop monitor
  • Ambient temperature reading
  • °F/°C switchable temperature unit
  • CO2 chart trend display
  • Simple and easy calibration function


  • CO2 Measurement
    • Range: 0~5000ppm
    • Accuracy:
      • @0~3000ppm: ±50ppm or ±5% of reading, whichever is greater
      • over 3000ppm: ±7%
    • Repeatability: 20ppm @40ppm (standard dev of 10 readings in 1 minute)
    • Resolution: 1ppm (0~1000); 5ppm (1000~2000); 10ppm (>2000)
    • Temp Dependence: ±0.2% or reading per °C or ±2ppm per °C. whichever is greater, reference to 25°C
    • LED Color Indicator:
      • Green LED: <800ppm CO2 concentration
      • Yellow LED: 801~1200ppm CO2 concentration
      • Red LED: >1200ppm CO2 concentration
  • Temperature Measurement:
    • Range: 0~50°C (32~122°F)
    • Resolution: 0.1°C (0.1°F)
    • Accuracy: ±1°C (±1.8°F)
  • Operating Environment: 0~50°C (32~122°F); 0~95% RH, non condensing
  • Storage Environment: -20~60°C (-4~140°F); 0~95% RH, non condensing
  • Response time: <2min for 63% of step change or <4.6min for 90% step change
  • Warm-up Time: 15sec
  • Power requirements: 160mA Peak, 15mA average at 5.0V
  • Dimension: 110 x 38 x 28mm
  • Weight: approx. 103gms

Set Includes:

  • 1 x CO2 Monitor
  • 1 x USB Type-C Power Cable
  • English Manual
  • Standard Factory Packaging

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