SeeedStudio Grove HCHO Sensor


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SKU: 1147650
  1. Operating Voltage 5.0V ± 0.3V
  2. Target Gases: HCHO, Benzene, Toluene, Alcohol
  3. Detects Volatile Gases
  4. Concentration Range: 1~50 ppm


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Category: Gas and Dust Sensor
Tags: Gas Sensor, VOC gas sensor

The Grove – HCHO Sensor is a semiconductor VOC gas sensor. Its design is based on WSP2110 whose conductivity changes with the concentration of VOC gas in the air. Through the circuit, the conductivity can be converted to an output signal that corresponds to the gas concentration. This sensor can detect the gas whose concentration is up to 1ppm. It’s suitable for detecting formaldehyde, benzene, toluene and other volatile components. This product can be used to detect harmful gas in the home environment. Therefore, it’s a good assistant for you to improve the indoor environment quality of life.

Getting Started with SeeedStudio Grove HCHO Sensor

Pin Description : 

  1. GND The weight of the system.
  2. VCC The supply voltage is 5 V.
  3. NC Not connected.
  4. SIG Sensor output signal.

Package Includes :

1 x SeeedStudio Grove HCHO Sensor

SKU: 1147650 Category: Tags: ,

Grove HCHO Sensor WSP

Operating Voltage (V)

5.0V ± 0.3V

Target Gases


Detecting Range

1~50 ppm


Rs(in air)/Rs(10ppm HCHO)≥5

Sensor Resistance

10KΩ-100KΩ(in 10ppm HCHO)

Shipping Weight 0.01 kg
Shipping Dimensions 6 × 3 × 1 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China