Small Floating Thermometer floats in your aquarium or suctions to the side of your aquarium. Floating Water thermometer effectively reads from 20 to 100 degrees Fahrenheit. Size: 4.5 in. L x .5 in. diameter.
This thermometer is both inexpensive and accurate - exactly what I wanted. Digital thermometers need such frequent battery changes that I will no longer use them. So, it's back to basics, and this one is both inexpensive and accurate. True, the EXACT temperature may be a bit hard to read, but I really do not care if the water is 77 degrees versus 78 degrees. The "green zone" tells me what I need to know. I highly recommend this thermometer.
Seems to work, but hard to read 1/15/2014
Reviewer: Nicole Pereira
Seems to work but its hard to read because the lines are very bunched up and small. I replaced it with one easier to read from petsmart.
Its a little small 11/25/2013
But that's what I like about it. It works great!
Penn Plax thermometer 9/14/2013
This thermometer rocks. That lady below me doesn't know what she's talking about. It works perfectly for my 10 gallon. Love it!
You get what you pay for... 8/5/2013
this is a working thermometer...but it is tiny with tiny numbers. Should have ordered a higher price one with readable printing!