"have 2 of these and both accurate but neither fits the rim of the tank (29 gal and 55 gal). The lip of the metal rim is not long enough to fit over frame of tanks. I used spare suction cups from"... (read full reviews)
"I just got this thermometer today along with a heater from another store and it's been measuring the temp fine! It doesn't float to the top but it bobs around inside the tank, which doesn't actually"... (read full reviews)
"The thermometer is a small, narrow strip with adhesive on the back. Installation is simple enough, just stick it on the outside of the tank.
easy to add
works (for the most"... (read full reviews)