Target: CH2O, HCHO, Formaldehyde
Model: ZE510-CH2O
Detection range: 0~5ppm
Detection principle: Electrochemical
Characteristics: High sensitivity, high resolution, low power consumption, long service life

ZE510-CH2O Manual download
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ZE510-CH2O electrochemical formaldehyde module is a general-purpose, miniaturized module. Using electrochemical principles to detect CH2O in the air, it has good selectivity and stability. Built-in temperature and humidity sensor for temperature and humidity compensation; with digital output interface, easy to use. ZE510-CH2O is a general-purpose gas module designed and manufactured by combining mature electrochemical detection technology with sophisticated circuit design.


Portable detector, air-quality monitor, air cleaner, air renewal system, air conditioner, smart home.


  • High sensitivity, high resolution, low power consumption, long service life;
  • Provide UART output mode, temperature and humidity output;
  • High stability, excellent anti-interference ability, temperature and humidity compensation, excellent linear output


Model No. ZE510-CH2O
Target Gas CH2O
Interference Gas Alcohol, CO &ect.
Output Data UARToutput(3VTTLElectrical Level)
Working Voltage 3.7V~5.5V
Warm up time ≤3 minutes
Response time ≤60s
Resume time ≤60s
Detection Range 0~5ppm
Resolution ≤0.01ppm
Operating Temp. -20℃~50℃
Temperature accuracy ±0.5℃(0℃~50℃)
Operating Hum. 15%RH-90%RH
Humidity Accuracy ±5%RH
Operating temperature -20℃~50℃
Working humidity 15%RH~90%RH (no condensation)
Storage temp. 0~25℃
Working life 5 years (in air 18℃~ 25℃)

* 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.