Flutesan 40 Pieces Temperature Strips Urine Testing Adhesive Temperature Strips 90 to 100 Fahrenheit Degree Sticky Thermometer for Bottle

I saw so many people stating these don't work. I have to assume that they either got bad batches or (more likely) they were using them on something whereas the walls of the bottle or container were too thick to get an accurate temperature. You have to understand what you're doing (the laws of physics / thermodynamics can help you!). These worked quite well and were consistent. I used an infrared thermometer to check surface temp vs what these read and they were right on the strength... don't be mad if your skillz aren't MADD and you use them wrong!

People that say these don't work are doing something wrong.. I've used a bunch. They all work. You have to be using 'liquid' that is hot enough to get a reading. If it's under that temp range, you might not get any reading at all.. I tested these alot with my own personal warm liquid directly from me.. they work..

Zero stars. They do not work at all. There are no indicator dots of any color. At first, I thought.... oh, my sample is either above, or below the detectable range. Then I started sticking them on my skin. And still nothing. Don't be a sucker, like me. Learn from my mistake. DO NOT BUY.

These work great if you follow the directions. Apply directly to the outside bottle of what you are warming. I’ve found that 9-11 seconds in the microwave, give it a gentle shake, and you’ll find the temp within the range you need it.

Works awesome! I had very little faith but I was proved wrong these saved me very happy!!!!

They worked as intended.

Got different readings so I’m not sure how accurate these strips are. Especially if you need highly specific numbers

I don't know why people said these don't work , I tested and verified them using a laser thermometer, not only did they work , they are the same kind the testing location used! Definitely recommend