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Grove - HCHO Sensor - formaldehyde Detection

The Grove - HCHO Sensor can be used to detect VOCs, such as HCHO, toluene, benzene, and alcohol which is Built with VOC sensor WSP2110 and Up to 1ppm high sensibility.

In stock
  • 10+: $11.40


The Grove - HCHO Sensor can be used to detect VOCs, such as HCHO, toluene, benzene, and alcohol which is Built with VOC sensor WSP2110 and Up to 1ppm high sensibility.


  • Up to 1ppm high sensibility: High sensitivity to organic gases such as toluene, benzene, methanal
  • Quick response and resume: Real-time detection of gas values
  • Good stability and long life: The sensor value fluctuates little
  • Simple detection circuit: The higher the concentration of gas is, the higher conductivity of sensor gets
  • Grove compatible interface: The product ensures "Plug and Play" and could be versatile for various applications of Grove


The Grove - HCHO Sensor is a semiconductor VOC gas sensor. It uses the VOC sensor WSP2110 whose conductivity changes with the concentration of VOC gas in the air. With a circuit, the conductivity can be converted to an output signal that corresponds to the gas concentration. This sensor has very high sensitivity and stability, it can detect gas whose concentration is up to 1ppm. It can be used to detect Toluene, Methanal, Benzene, Alcohol, Acetone etc. This product can be used to detect the presence of harmful gas in the home environment. It can be a good assistant to improve indoor air quality.

We have developed more than 400 Grove modules, covering a wide range of applications that can fulfil various needs. Click to explore the Grove Sensor family and get started to Grove your Idea. For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.


  • Automatic exhaust device
  • Air cleaner
  • The domestic occasion for harmful gas detection
  • Indoor environment detection
  • Smart home

One More Thing

With the SenseCAP S2110 controller and S2100 data logger, you can easily turn the Grove into a LoRaWAN® sensor. Seeed not only helps you with prototyping but also offers you the possibility to expand your project with the SenseCAP series of robust industrial sensors.

The IP66 housing, Bluetooth configuration, compatibility with the global LoRaWAN® network, built-in 19 Ah battery, and powerful support from APP make the SenseCAP S210x the best choice for industrial applications. The series includes sensors for soil moisture, air temperature and humidity, light intensity, CO2, EC, and an 8-in-1 weather station. Try the latest SenseCAP S210x for your next successful industrial project.


Operating Voltage

5.0V ± 0.3V



Detection Gas

toluene, methanal, benzene, alcohol, acetone &etc.

Detection range


Sensor Resistance Value(Rs)

10KΩ-100KΩ(in 10ppm HCHO)


Rs(in air)/Rs(10ppm HCHO)≥5

Part List

Grove - HCHO Sensor 1
Grove - cable 1


HSCODE 9027900000
USHSCODE 8543708800
UPC 841454108252
EUHSCODE 9027109000
EU DoC 1
RoHS 1
UK DoC 1



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