ACURITE Digital Wireless Fridge and Freezer Thermometer with Alarm and Max/Min Temperature for Home and Restaurants (00515M), Stainless Steel Finish, 4.25" x 3.75"

... the frustration of a fridge/freezer in the garage stopping working and not noticing until a few days later, I know the pain involved in having to throw out perfectly good (and expensive) food.So, I resolved to stop it happening again and I purchased these. Reviews that are written after time and not when in the initial haze of consumer contentment always carry far more weight, in my opinion, and this is one such as I have had these since November 2022. I am writing this now because, thanks to these beauties, I managed to head off another fodder fiasco when a different fridge/freezer in the garage suddenly stopped: I fixed the problem before I had to throw anything away because I became aware of the issue in good time. At last - something I bought that actually SAVED me money !!These are fairly straightforward to set up (although to set the warning alarms takes a little effort) and I am pleased to report that the batteries (two AAs in each) I installed in both sensors over a year ago - ALWAYS use lithium ones if you want a better experience ! - are still functioning just fine (although I have changed the three AAs in the receiver unit on one occasion).I decided not to keep the alarms as I didn't want any potential beeping in the middle of the night, so I simply verify the temperatures every day. It's actually quite fun to think that you are checking on the temperature of an appliance outside of the house ! There is an easy-to-see record of the previous 24-hour's minimum and maximum temperatures at the bottom of the screen and one push of a button shows you all the lowest and highest temperatures from when you last reset the unit. All numbers are clear to read.I do think that this set is quite expensive, though (and it was £60 when I purchased it), but one's choices are somewhat limited and at least I can show that they do work, so I guess it equates to value for money - especially when one compares it with a cost of replacing the contents of a well-stocked fridge/freezer !!I have the receiver unit on the side of a fridge in the kitchen (decent magnets present) and the actual sensors are about 20 feet away in the garden behind a metal garage door; I have had no issue with signal strength.And that's about it. As is my wont, I shall update this review if anything ceases to function as it should. If there is something specific that you would like to know that I have missed out, please ask a question and I shall do my best to respond...FV

Often don’t go out to our shed freezer for a few days. This sits in the house in case of any issues. Works brilliantly.

Very overpriced for what it is but it works and I haven't been able to find anything else of the same standard.