Review on Marina Diameterolphin 86 Degree Fahrenheit 30 Degree by Guillo Tilden

The packaging says it is detachable, but when I tried to adjust the thermometer after I put it in the aquarium to align it, it tore and left part of the thermometer in the aquarium when I tried to slowly peel it off him to fit it. If you decide to purchase this item, please make sure it is exactly where you want it before attaching it to your tank and don't plan on removing it later in hopes of getting an undamaged one get a thermometer. The thermometer hasn't worked long enough to tell you how accurate its readings are. I will not spend any more money on this product.