Aquarium Thermometer LCD Digital Aquarium Thermometer with Suction Cup Fish Tank Water Terrarium Temperature for Fish and Reptiles Like Lizard and Turtle

Everything works well! I really liked that this package came with 2 working batteries so I didn’t have to go on a scavenger hunt to find these certain batteries. My fish loves to squeeze into every small space possible and so she’s managed to separate the heater from the wall, but she’s yet to accomplish that with these suction cups!The thermometer works super well, I only wish there was an LED option where it’s easier to read. When the lights are on, it’s legible, but at night when everyone is most wary of leaving their heaters on, I can’t read it so I’m always using the flashlight on my phone to read the numbers. Only a slight inconvenience, but not large enough to hate on it.I’ve only had it for 4 days now, but it works super well and I love that it’s small!Update: it’s been over a month since I’ve bought it and I’ve yet to have any issue with it overheating. Occasionally, I may notice that it’s a little warm (if it gets to be near 83 degrees, that’s when I open a window or something, I don’t use the AC or heater in my apartment). I have yet to unplug it other than when I clean the tank!