lizardland
Contributor
I don't really want to post a direct link because I don't want to make it easy for people stumbling across this who don't know what they're doing to buy something that is potentially lethal. If you search for Asair oxygen sensor they do a line of knock off cells for industrial analysers. I know that's not really making it any harder but I feel betterI for the life of me can't find cheap O2 sensors on AliExpress. Do you have any suggestions on what to search for?
I plan to use them to verify vs a good sensor (typically on test builds). Just hard to justify spending $100 on a spare sensor that I don't really need.
