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Environmental Tester AQD 50
The environmental tester is specially designed for long-term monitoring of climatic conditions in, for example, offices, classrooms or lecture halls. The air quality meter has various sensors. Among other things, the air quality meter has a carbon dioxide sensor up to 40,000 ppm, a temperature sensor with a measuring range between 0 ... 50 °C, an ambient humidity sensor with a measuring range between 0 ... 100% RH and a barometer with a measuring range between 300 ... 2000 hPa. The air quality meter can therefore be used in many applications due to its large number of sensors. The measured values ​​are shown directly on the e-paper display of the air quality measuring device. A good / medium / bad rating of the carbon dioxide content in the ambient air is also displayed.

During the measurement, the environmental tester can automatically record the measured values. The measured values ​​are saved as .csv on the micro SD card. This means that the measurement data recorded by the air quality meter can be imported directly into the company's own database. The measurement data from the air quality measuring device can be displayed in graphical and tabular form via the software.

The environmental tester has an alarm function. This alarm mode can be used to set limit values ​​for the individual sensors. As soon as the set threshold value is reached in the air quality meter, this is indicated acoustically and visually via the alarm LED. After the air quality meter falls below the threshold value again, the alarm switches off again automatically.
 
AQD 50 Manual Download
 
AQD 50 Manual1 Download

Environmental Tester AQD 50

  • Temperature  
    Measuring range 0 ... +50 ºC / 32 ... 122 ºF
    Resolution 0.1 ºC
    Accuracy ±0.15 ºC @ 0 ... 20 ºC / 32 ... 60 ºF
      ±0.1 ºC @ 20 ... 50 ºC / 68 ... 122 ºF
       
    Ambient Humidity  
    Measuring range 0 ... 100 % RH
    Resolution 0.1 % RH
    Accuracy ±1.5 % RH @ 0 … 80 % RH
      ±2 % RH @ 80 … 100 % RH
       
    Atmospheric Pressure  
    Measuring range 300 ... 2000 hPa
    Resolution 0.1 hPa
    Accuracy ±2 hPa @ 25 ºC / 77 ºF and 750 ... 1100 hPa
      ±4 hPa @ 0 ... +50 ºC / 32 ... 122 ºF and 300 ... 1200 hPa
       
    CO2  
    Measuring range 0 ... 40000 ppm
    Resolution 1 ppm
    Accuracy ±(30 ppm + 3% of measured value)
      @ 400 ... 10000 ppm @25 ºC / 77 ºF
      ±(6 ... 10 % of measured value)
      @ 0 ... 400 ppm or 10000 ... 40000 ppm
       
    Temperature Stability 2.5 ppm/ºC @ T = 0 ... 50 ºC / 32 ... 122 ºF, 400 ... 10000 ppm
       
    Further Specifications  
    Display 2.7" E-Paper
    Battery life* ca. 10 months for the measurement intervals:
      Temperature: 60 minutes
      Ambient humidity: 60 minutes
      Atmospheric pressure: 60 minutes
      CO2: 60 minutes
    *further information on battery life can be found in the instructions
       
    Storage capacity MicroSD card with 32 GB of storage for
      a total of 1 trillion measuring points
       
    Sampling intervals 30s, 1 min, 2 min, 10 min, 15 min, 30 min,
      1 h, 2 h, 6 h, 12 h, 24 h
       
    Power supply battery 7.4 V DC / 3400 mAh, Li-Ion battery
    Power supply mains power adapter 12 V DC / 1.5 A
    Protection class IP30
    Operating conditions 0 ... +50 ºC / 32 ... 122 ºF
      0 ... 100 % RH, non-condensing
    Storage conditions -20 ... +60 ºC / -4 ... 140 ºF
      0 ... 100 % RH, non-condensing
    Dimensions 128.5 x 88.5 x 41 mm / 1.1 x 3.4 x 1.6"
    Weight 300 g / 10.5 oz
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