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Grove - HCHO Sensor

SKU 101020001
  • Up to 1ppm high sensibility
  • Built with VOC sensor WSP2110
  • Covers HCHO, Benzene,Toluene, Alcohol etc
  • Grove connector compatible
  • Easy to use
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$14.90 /each 1 pcs
$13.41 /each 10 pcs
$12.67 /each 20 pcs
$11.92 /each 50 pcs
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 air. With a circuit, the conductivity can be converted to an output signal that corresponds to the gas concentration. This sensor has a very high sensitivity and stability, it can detect the 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.



  • • ŸOperating Voltage: 5.0V ± 0.3V  
  • • ŸTarget Gases: HCHO, Benzene,Toluene, Alcohol 
  • • ŸConcentration Range: 1~50 ppm 
  • • ŸSensor Resistance Value(Rs): 10KΩ-100KΩ(in 10ppm HCHO) 
  • • ŸSensitivity: Rs(in air)/Rs(10ppm HCHO)≥5


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 using of the product.
Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.
More information about gas sensor, please refer to this manual.
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Questions and Answers
Does the "Ink"Color Bag have silver tone hardware? (Chain)? It is hard to tell in photo
on Aug 5, 2014
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I bought the black one and the chain is gold color. Not sure of the ink bag.
on Aug 5, 2014
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You need a WiFi Internet connection, and a smartphone or tablet for the Echo App. That's it. It is easy to set up, but it may take you a while to figure out all of the little things that the Echo App can do.
on Aug 5, 2014
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BEWARE this is NOT STEREO and it is NOT MONO. This is only one channel. You will not hear part's of songs (recorded in stereo) that are only played through the left channel. Kinda ridiculous. Still it is a decent sounding speaker.
on Aug 5, 2014
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★★★★★ Great bag
Purchased this for my 23 year old daughter in the butterscotch color. Great versatile color. She loves the size -- perfect for day or going out at night. Chain can be double to shorten for nighttime and left long to wear as a crossbody during the day.
September 2, 2013 by
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