VOC-21 VOC Monitor Tester Indoor Air Quality IAQ Meter Detector 0~50ppm- Temperature, Humidity, Air Contaminants Measure Tester for Home Type Indoor Offices Bedrooms

  • 11% OFF
  • $89.99

  • Regular Price $100.90

Add to Wishlist

Check shipping / delivery time for your country | Free Shipping Worldwide Request for Quotation

Design to DETECT HARMFUL GAS via Japanese semiconductor sensor and a setting CONTROL via relay output to automate ventilation equipment, ventilator, air purifier and other fresh air devices to maintain good indoor air quality. Plus it has audible alarm when the measured value is above 25ppm.

The sensor has high sensitivity not only to VOC such as toluene and formaldehyde from wood finishing and construction products but also to carbon monoxide, alcohol, disinfectant and other air contaminants which emitted by cigarette smoke, ammonia, hydrogen sulfide, making this suitable for monitoring indoor air quality.   

Applications: Home and office environment. Installation place such as bedroom, sitting room, study and dining room, kindergarten, classroom, office car, restaurant and other public places.


  • Relay output to control the ventilator or air purifier, max current 3A resistance
  • Temperature and Humidity measure result display
  • Real-time monitoring
  • Desktop or wall-mount
  • Fireproof PC/ABS IP30 protection Housing
  • ISO9001 certified
  • On / Off Buzzer alarm
  • Language: English or Chinese


  • Measuring range: 0~50ppm (1ppm = 1 part per million)
  • Accuracy: 0.3°C
  • Signal update
    • Temperature & Humidity: 3s
    • VOC: 1s
  • Sensing Element : HS series Capacitance Sensor
  • Display and VOC resolution: 0.1ppm
  • Consumption: 2.4W
  • VOC concentration indicator
    • Green: the VOC <15ppm (AIR at Quality Good - Enjoy at The AIR at Quality)
    • Yellow: the VOC 15 ~ 25ppm (AIR at Quality. Moderate - ventilation Suggested)
    • Red: the VOC> 25ppm (AIR at Quality Poor - Immediately is ventilation) 
  • Warning alarm: inner buzzer alarm w/ also 3 colours backlit switch as well
  • Wiring Standard: Wire section area <1.5mm2
  • Dimension: 130 x 85 x 37mm
  • Power Adaptor: 110~220V

    Set Includes:

    • 1 x VOC Meter
    • 1 x Power adaptor
    • English Instrction Manual
    • Standard Factory Package

    Related Products