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Fridge/Freezer Monitor


Red Skull Member
Jul 29, 2020
Member Number
Upper Marlboro, MD
Does anyone make a reliable temp monitor/alarm system that's reliable for 300+ ft range? Need to monitor a freezer and fridge (2 separate units) from about 100 yards and signal needs to go through a couple of plaster walls. There's lots on amazon, but they all seem to max out at 300 ft nominal range and I'm pretty sure that 300 ft range on chinese wireless really means about 25 ft on a good day. No real way to run a wired system either - needs to be wireless.

It would also be nice to be able to have multiple transmitters so I can monitor the fridge & chest freezer in the house too with the same head unit, but I also don't want to drop a huge amount of money.
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