Zonon Stick On Thermometer Strips Horizontal Thermometer Stickers Digital Temperature Display for Fermenting, Brewing, Wine, Beer, 64-93 Fahrenheit/ 18-34 Centigrade (12)

The temperature is a challenge to see. Sometimes the square is green. They work sometimes. Difficult to unpeel and put on a different part of the jar. You’ll need to replace it. I’ll be trying a different brand. Reviews said the same thing. Check them out before you buy.

Product works perfectly I'm just trying to get in touch with whoever can give me my money back for the overnight shipping I paid for to obtain said product it did not come in overnight it took almost two days

Easy to stick onto surfaces and easy to read. It has temperature in Fahrenheit and Celsius scales.

De buen uso en el laboratorio

My first few months of making kombucha, and I started using these after a couple weeks along with a low-med-high jar warming pad when I thought my first couple batches were tame because of under 75F weather. I guess kombucha is pretty forgiving when following instructions, and maybe the 75F-85F range has some more flex than that, but Ive been using one of these thermometers to check during the hottest and coldest times of day and to dial in which setting to use on my heat pad. Kombucha seems to come out fine.