Browse sensors on QuelPosto, the marketplace for buying and selling almost anything. Nothing listed here yet — listing your own is free and takes a couple of minutes.
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Payment is held until you confirm the item arrived as described, so you are not sending money into the dark. If something is wrong, you can raise it from the order itself.
Listing sensors is free and takes a couple of minutes. Set your own price, post when it sells, and get paid once the buyer confirms delivery.
