Cubic CB-HCHO VOC Sensor

CB Series VOC Gas Sensors

Modules for detecting formaldehyde and TVOCs.

Supplier: Cubic Sensor and Instrument Co. Ltd

Technology type: VOC Sensors

The CB series consists of modules with an electrochemical cell sensor used mainly to detect formaldehyde. When formaldehyde gas passes through the sensor, the formaldehyde molecules undergo oxidation-reduction reaction. This generates a small current that is proportional to the gas concentration.

Through mathematical algorithms and scientific calibration, it can simultaneously output also TVOC concentration.

Range features

A high level overview of what this range offers

  • High resolution up to 1 ppb
  • Formaldehyde and VOC detection in one module
  • Multiple communication method: UART, I2C, PWM
  • Very compact size down to 23x32x7 mm
  • Full range temperature and humidity compensation
  • Typical applications are air purifier, HVAC system, Air conditioner, desktop air quality monitoring equipment

What's in this range?

All the variants in the range and a comparison of what they offer


Measurement ranges



Communication protocol


HCHO: 0~1ppm

VOC: 0~10ppm(equivalent alcohol


TVOC: 0~10ppm(equivalent alcohol



>0.1ppm:±25% reading(Reference

instrument: Gasera one,25±2℃,






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