Target: Formaldehyde, benzene, VOC, Temperature, Relative humidity
Model: ZPS20
Detection range: 0~10mg/m3
Detection principle: Semiconductor
Characteristics: High sensitivity,Excellent long-term stability
Output signal: I2C output
Response time: ≤30s

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Digital type ZPS20 module is a general-purpose air quality sensor module. This module is to detect VOC gas concentration, ambient temperature and humidity, adopting advanced semiconductor VOC gas sensor and MEMS temperature humidity sensor. It has the features of high sensitivity and digital output, which is convenient to use.


  • Air cleaner
  • Fresh-air system
  • Intelligent integrated ceiling
  • Air quality detector
  • Ventilation fans
  • Air-condition etcs
  • Air pollution detection
  • Air purification areas


  • High sensitivity
  • Excellent long-term stability
  • Low power consumption
  • Long lifespan
  • I2C output


Model No. ZPS20
Detection Gas Benzene, toluene, formaldehyde, alcohol etcs organic volatile gases; cigarette smoke, carbon monoxide, ammonia, hydrogen etcs harmful and explosive gases
Output I2C output
Working voltage 5.0±0.1V DC
Working Current ≤70mA
Warm-up Time 3 min
Response Time ≤30s
Recovery Time ≤60s
Detection Range 0~10mg/m3
VOC index output 0~500
Operating Temperature 0~50℃
Operating Humidity 15%RH- 95%RH(no condensation)
Temperature output range -40~85℃
Humidity output range 0~100%RH
Storage temperature -20~60℃
Size 32mm*24mm*11mm

* The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.

Technical Support:

Customized technical design and function, LOGO and package are available without extra charge (including molding fee) for mass volume.

The sensors don't have sleeping mode. It can be set in program if needed.

All Winsen products go through strict inspections and tests to make sure they are 100% qualified before shipping out.

The sensor has been fully tested (not calibrated) before leaving the factory. However, after transportation and storage, the environment conditions change, and the surface of the sensor absorbs moisture, mixed gas, pollution matters, etc. It is recommended that customers perform aging and calibration after sensors become stable according to the program and use occasions of the whole device.

15﹪-90﹪RH without condensation,greater or less than this range or long-term high temperature and high humidity will affect the life of the sensor.

Our sensors are certified with CE, 3C, ROHS, anti-explosion, fire prevention, and coal mining safety according to different applications. And we provide assistance for new certification.

Many factors can cause the sensor to fail such as broken wires in transportation, poisoning, falling off of the sensitive material, damage to the heating wire (device), etc. Please find specific cause in each category with Winsen’s aftersales.

Winsen provides professional consultation and service before and after sales. We will recommend the best fitting sensor for your demand. If you have any problem, don’t hesitate to email us to

Due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. But we will reply to your inquiry in 24 business hours.