VTH-6202 / VTH-6242 Air Quality Sensor

High performance with a minimum of maintenance.

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VTH-6202 / VTH-6242VOC air quality sensor

VOC air quality sensor

The VTH-62xx sensor is used to measure the air quality in ventilation ducts when the air handling system is to be demand controlled.

Air quality is measured on the basis of its content of volatile organic compounds, which are given off by people, furnishings, cleaning agents, building materials, etc.

VTH-6202 is a compact sensor with OJ QuickPlug™ Modbus connection, facilitating installation.

VTH-6242 is the same product as VTH-6202 but with a connection box instead of the fixed cable. This is especialy relevant when the sensor is mounted far away from the controller.

The sensor builds on OJ Electronics’ many years of experience within HVAC applications and is designed to provide optimum and reliable performance.

Air quality
Volatile organic compounds (VOC) comprise alcohols, al-dehydes, ketones, esters, terpenes, aromatics and alkenes (methane). The VOC concentration is converted into a CO2 equivalent.

High performance with a minimum of maintenance
The sensor has high resolution and is self calibrating. It utilises an advanced technology which has been used in the automotive industry for many years.

Simple and easy installation

  • A version with a connector box for easy mounting in cases where longer cables length is needed.
  • Pre-fitted 7m cable and connector, facilitating quick and safe installation. OJ QuickPlug™.
  • Modbus compatibility with permanently configured protocol settings that prevent configuration errors.
  • Compatibility with OJ AIR2 and OJ GreenZone™ systems.

The sensor can be used to great advantage in
applications such as:

  • Demand-controlled ventilation in air handling systems.
  • Demand-controlled ventilation in decentralised HVAC systems.


  • Air quality sensor
  • Modbus
  • With or without cable
  • Simple installation


Product Documents

Product Sheets
Product Sheet, VTH-6202-6242, English
File type/size:PDF ( 824,44 kB )
Product Sheet, VTH-6202-6242, German
File type/size:PDF ( 824,54 kB )
Brochure, OJ-GreenZone, English
File type/size:PDF ( 6,79 MB )
Product Catalogue, HVAC Controls and Drives, 2024, English
File type/size:PDF ( 4,23 MB )
Instructions, VTH-6202 (EN, DE, FR, SV, NO, DK)
File type/size:PDF ( 657,44 kB )
Instructions, VTH-6242 (EN, DE, FR, SE, NO, DK)
File type/size:PDF ( 667,83 kB )

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