Review on 🐠 6 Pack AQUANEAT Aquarium Thermometer - Reptile & Fish Tank Digital Thermometer with LCD Display for Terrarium Water Temperature Test by Theresa Grieve

It still gets a high rating because it's freakin' less than $2 what's the difference if some of them don't work. Non-working ones still give 2 E batteries. In my case, let me experiment with changing the electronic temperature sensor's sensing capabilities (so I can get my hot tub to work above 104) for less than $2 per test instead of $30 $ per exam. For our pool and hot tub we installed them permanently and the entire batch was accurate to within 1/2 degree. Very easy to read. We press to read, then immediately hold to turn off to save battery, but EVERYONE comes with a battery installed AND a backup. The cost of batteries if you bought them elsewhere will most likely be more than the cost of these thermometers. Suction work for a month - in the circulation of the pool and jacuzzi. If and when we run out of this batch I will order another batch immediately.