I like those too. I have about 4 of the expensive Oasis ones and about 8 of these. They work as well as the expensive ones. I calibrate in a mason jar with Boveda packs and they are quicker to respond and within 1% mostly. New ones that are more than 3% off I chuck. The oasis can be adjusted though and I bought one of the Rainbird brand and it’s 2% off low but it’s rock solid on that calibration but can’t manually adjust calibration. Batteries that come with them don’t last and I bought some decent ones.
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