Review on 🌡️ AikTryee Aquarium Thermometer with LCD Display - Fish Tank, Water, Reptile Terrarium, Vehicle, and Refrigerator Temperature Gauge (Fahrenheit/Celsius) by Danielle Hartman

First, the temperature display is difficult to see if the room is not well lit. Second, I've only had it for about 3 weeks and the outdoor unit has already fallen off the glass. Third, if you have more than one tank, you cannot rely on the readings. The seller said that the device has an accuracy of + or - a degree, which I found to be correct. This means that one tank can read 78 degrees and the other tank can read 80 degrees, but in fact both tanks can read 79 degrees. Also, both tanks can read 78 degrees with an accuracy of + or - one degree, one tank can actually be 79 degrees and the other 77 degrees (with a difference of two degrees). What would be terrible if you were transferring fish from one tank to another and relying on inaccurate readings.