Indoor Air Quality (IAQ) Sensor Transmitter, Detector

Indoor Air Quality (IAQ) Sensor Transmitter, Detector

Why monitor only carbon dioxide (CO2), when CO2 and VOCs are the main component of air quality ALVI Automation Gas Alarm System India offer Air quality (IAQ, CO2 + VOC + Temperature Humidity) sensor transmitter/detector with following features:

  • Measuring range: 0-30ppm
  • Technology: Bio-semiconductor
  • Output: 4-20mA, 0-10V, RS485 Modbus, BACnet (Optional)
  • Enclosure: IP40
  • Certificate: CE
  • Mounting: wall mountable, duct mountable (optional)
  • Installation area: safe area

Application areas: building ventilation, green building, airconditioning, paint, VOC free paint, rooms, auditorium, theatre, hospitals, office, multiplex, pubs, conference room, hotels, banquet room, datacentre, malls, parliament, schools, college, BPOs, call center, aircraft cabin, car cabin, etc


  • Reverse polarity protected
  • Poisoning protected
  • Capable of mounting in any direction, with no effect on performance, output, and life of these sensors (no orientation problems)
  • Modular architecture
  • Manual calibration
  • Expected life > 15 years
  • Low response time
  • Sleep protection
  • Microprocessor-based value processing with temperature, moisture, dust, vibration compensation
  • High amplitude, low frequency, and low amplitude, high-frequency compensation
  • with industrial designed hydrophobic filter
  • Capable for field calibration with zero and span/gain trim pots and have low calibration and maintenance cost

Eg. A freshly painted room will have no CO2 ( or minimum CO2 concentration) but have a very high level of VOC (volatile organic compound) concentration. Hence, if we install only the CO2 sensor, it will say “ Ventilation not required due to low CO2” and hence will not trigger the ventilation. And hence, it will hamper human comfort. While if we install, IAQ (MSR indoor air quality sensor which will monitor both CO2 and VOC) will trigger ventilation on the basis of high VOC.
Avoid Sick building syndrome.

Additional Information:
  • Item Code: IAQ