Review on 🌡️ Aquarium Thermometer LCD Digital - Waterproof, Suction Cup Fish Tank Water Temperature Monitor for Betta Fish by Chelsea Hicks

Ok things have changed since my last review. Maybe I should have waited. I had it for about a month when the other day the temperature showed something very different than usual. I panicked because he said my tank was pretty cold and I thought my heater was broken. But when I touched the tank and compared it to the tank next to it, I felt the same way. So I took another thermometer to test it and apparently this thermometer is either broken or needs batteries. The difference was 8 degrees. Anyway, it's not very good. I don't want to change the batteries every month. And if it's broken well, then that says it all. I was so happy but now I'm very disappointed. Also, it's in degrees Celsius, which makes things harder for me. I have to do some math before I know what it is. I don't know how to express it in Fahrenheit. There were no instructions.