Model name: AI-VOC-D

Volatile Organic Compound Detector

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Volatile Organic Compound (VOC) Detector by Ace Instruments is an indoor air quality monitoring solution allowing users to assess TVOC concentration and temperature in one device. Available in an IP54 rated wall mounting enclosure with LED display, with dual 4-20mA outputs for temperature and VOC, optional RS-485 Modbus communication and a programmable buzzer alarm for alerts.

Powered by metal oxide (MOX) based sensors, the high sensitivity VOC detector can rapidly alert the users to changes in VOC concentration in the environment. By addressing one of the major contributors to poor indoor air quality and comfort, the VOC detector finds applicability in: commercial office workspaces, retail outlets, hotels, restaurants, museums and galleries. Industrial applications of the VOC detector include: pharmaceutical manufacturing, clean room environments and laboratory environments.


  • VOC and temperature measurement 
  • In built programmable buzzer alarm (Optional)
  • RS-485 Modbus communication (Optional)
  • MOX based sensor sensitive to most indoor VOC gases 
  • IP54 ABS plastic wall mounting enclosure



Sensor Type

Metal Oxide (MOX) based sensor (Switzerland)


Measuring Range: 0 to 500 ppmAccuracy: Max of <±15 PPM @ 25°C and 50% R.H. in zero air


Measuring Range: 0 to +50°CAccuracy: ± 0.5°C

Analog Output

0-10 VDC / 2x 4-20mA outputs (one each for VOC and Temp)


Optional RS-485 Modbus RTU protocol

Buzzer Alarm

Optional buzzer alarm programmable with front keys

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