Which model of the MQ gas sensor can detect Freon/CFC's gas?

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John Reye

HI,

There are options out there. You specifically stated a MQ sensor so if that is a must then I might have a part number for you. If you have options then I have a few other options for you can consider other options. Good luck.

I think the MQ-139 gas sensor might be what you are looking for. For a description I am supplying the following site that specified that it was good for CFCs:

https://www.amazon.com/HUABAN-MQ-139-Chloro-Detection-Sensitive/dp/B082394DNP/ref=sr_1_1?dchild=1&keywords=freon+MQ+gas+sensor&qid=1602216402&sr=8-1

Not one of your two brands but:

https://en.gazdetect.com/catalog/refrigerant-gas-freons-leak-detector-rd99/

https://www.figarosensor.com/product/docs/TGS%203830(0916).pdf

https://uk.rs-online.com/web/p/gas-detectors/5390027/

A. Z. M. Tahmidul Kabir

Thank you for your valuable suggestion John Reye .