Propagate Pro Horizontal Stick On Thermometer Strip, Digital Temperature Display for Fermenting, Brewing, Wine, Beer, Kombucha or Aquariums. 50-90F (10-32C) Adhesive Sticker 10 Pack (10)

I took off one star each on Accuracy and Easy to read because I use them for Aquariums... I swear that I have reviewed these before and did this very same thing, but according to the powers that be I have not.So, big deal you use them on aquariums instead of brewing and whatever else it is they can do. (I didn't forget, I just never committed it to memory lol). Technically; it isn't that BIG of a deal using them on fish tanks. The issue arises when your fish "care" what temp their water is, especially when they need the accuracy to be within 1-2 degrees (at the extreme). The only CON I have yet to find regarding these thermometers is that they have a 4-degree variance to each new measured number. [71 - 75 - 79 - 82(not 4) - 86 - 90 °F] Keep in mind that this makes the °C variance only 2 degrees.Other than that they suffer from the same problem that every other thermometer like them suffers from... With any backlighting at all the temperatures become difficult to read. EASILY fixed of course... Turn on your light, or grab a flashlight, or smartphone, whatever you choose just so long as you make the light in front brighter than what's behind.So, as the title says, I use them. I am a repeat customer and I will continue to be for as long as the price is fair, and the therm is accurate. You expect to sacrifice minimal accuracy of course when you opt to use this type of thermometer over a mercury model, but I'd hate to live on the difference. Good quality item, and IMHO they offer us great customer service, That is rare these days.

Didn't come with any instructions on how to decipher the temperature. What color means what? Two columns have colors, a dark blue and a green to yellow color. There are no reading instructions listed with the package, nor in the Amazon listing at all. I was able to get help in a kombucha group. The 4 degree interval is too large in my opinion to warrant buying these. I would be able to determine that through ambient air.On the positive they do adhere well, and the horizontal layout is nice. If you hand wash your container they seem like they would last a long time.

These are accurate. I tape them to wine bottles and I know when my wine is at the correct serving temperature and when it needs to go back in the refrigerator. If your Chardonnay needs to be served at 50 degrees F it can warm up quickly sitting on the counter. I keep my fridge cold, my wine needs time to come up to a good drinking temperature. Great product, recommended. P.S. if you use the adhesive backing that comes on them they are one use only. You cannot remove them without destroying the thermometer. That's why I scotch tape them on.

Bought these for brewing kombucha from a reddit thread. Nobody really specified how long these last for. They were great for the longest time, but one day when I tried to check the temperature it was innacurate after about a month or two of use. Make sure that you change them frequently and they will treat you well!

they work great, i use them on my beer fermenters. i can see the temperature with one look. i have a digital thermometer close by, and both temperatures agree.