16 Pcs White Digital Fridge Thermometer Waterproof Refrigerator and Freezer Max/min Record Function LCD Screen Refrigerator Thermometer with Hook and Magnetic Back for Home (Button)

These work and seems to keep ok temperature, at least enough for my curiosity's sake. My complaint is that every so often they default back to Celsius and I have to tap the temp button to get them back to Fahrenheit. But, next time i check it, it's on Celsius.

Excelente, como se describe, todos funcionando bien

Do not let these get submerged in water for any length of time. The water does get in them. We tried to use them in a cooler with ice. When the ice melted and they got into the water, 2 of them were not usable anymore. Otherwise, they work great in a fridge or freezer. Accurate.

Like it but weak

11 of 12 arrived in working condition. The battery was dead in the 12th. Replaced the dead battery in the 12th and cleared all 12. 2 hours later they were all 12 reading the same as my master thermometer so reasonable accuracy is assumed.