For me, the Zigbee ones (generic ones from AliExpress) have been great inside both fridge and freezer. Bluetooth ones occasionally dropped off (and were much worse re: battery life.)
replyWhat happen to the batteries when inside the freezer ? Sensors seems to be fine at -20°C, but is it the case for standard AAA or CRC32 batteries ?
replyIt does, though in my case I've purposefully put an IKEA smart plug (which acts as a Thread/Matter router) in the kitchen, too, so the signal only needs to reach 2-3 meters out.
replyYeah I thought this might be an issue but it's been running flawless for months without ever dropping out.
replyI did the same and just added zigbee repeater outside the fridge.
replyWorks great.
The door seal is plastic/rubber and is RF transparent.
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