Penn-Plax AquaLIFE Therma-Temp Digital Aquarium Thermometer, 2-in

My fish kept breaking my glass thermometer on the inside of my tank. This thermometer works great and I don't have to worry about my fish breaking glass in their tank.

I don’t know why there’s so many negative reviews about this thermometer. I’ve used them for years with the oldest still in use being 8 years old. I have 6 tanks. 120 gallon, 55 gallon, 30 gallon, 20 gallon, 10 gallon and a 5 gallon. I have an expensive salt meter that also reads temperature and have checked the readings with this little stick on thermometer. When the stick on reads 79, the meter reads 80. Close enough that I’ll know if a problem arises with my heaters. I find the glass thermometers annoying, hard to read and not something I want in my tank with my 9 inch Tin Foil Barb. I’ve ordered a few more for my newest tanks.

This thermometer does not work I have one and it shows nothing, buying this it’s just a waste of money and time.

I have an aquatic turtle and this is perfect for me the less I have in the tank for him to fool with the better and it gives me a perfect reading.

It's easy to affix to the outside front of tank and very easy to read.

This product is absolutely horrible. Do not buy this. Take it from someone who knows. This is absolutely a waste of money so please save your money for a actual good thermometer that will work well!!!

It works, but it's hard to see the color. It's not nearly as bright as in the picture. My eyesight is good, but I'm the only one in the house who can read it.

These seem to work well, needed them so I can keep check on my tank temperatures

You need a magnifying glass to see the numbers. This item should be 3x the size, so you can read it.

The temp stand the same when heat was added and when the heat was off. Product is over price in my opinion.