Time to own up, I didn't quite close the freezer door fully - So I am looking for a freezer alarm. Something which will make a noise if the temperature in the freezer rises above say -10C.
All I can see on ebay, numerous ones - is freezer alarms which say the alarm can be set to between Lo 18C and Hi 28C. Surely not?
Do they really mean Lo (minus)-18C and Hi +28C?
Yes
Ta!
I've just used an inside/outside thermometer with a a wire to the 'outside' sensor. One with an alarm, of course. But new freezer has an alarm!
I have two Brennan ones and you can set the alarm temps to anything you like. They had quite long cables but not long enough so I extended them. This had no effect on the accuracy.
My talking thermometer has like a lower and upper temp and starts saying the temp when these are reached. However its not strictly a freezer alarm its an indoor outdoor talking thermometer from cobolt for blind people. The remote sensor just is on the end of a bit of thin wire and can be glued inside and the wire has to exit past the seal which may or may not cause long term issues. I imagine the figures you quote are written by some marketing drone who has never used a freezer alarm. Brian
on 28/04/2019, Brian Gaff supposed :
I have assumed that and ordered one, with a 3m sensor lead. It has to reach from freezer in the utility though a wall into kitchen so it can be heard when it is triggered.
Just very odd that all the ebay ads for these things missed off the minus sign.
We have a small alarm that uses a reed switch + magnet, and sounds a loud buzzer if the door is open more than a minute or so (delay adjustable).
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