Review on 🐠 Qguai Aquarium Thermometer: LCD Digital Fish Tank Thermometer for Saltwater, Freshwater, and Reef Aquariums - Clear Screen, C/F Switch, Wire-Free Temperature Monitoring by Katie Estabrook

VERY impressed! Ordered it here from Revain and within 24 hours it was reading the temp in my tank. Not to mention the installation, just remove the adhesive cover and place it on the tank. Came with an extra battery. Although I have floating thermometers in all of my tanks, I rarely check the temperature as it is inconvenient to find or read it unless I look where I can see it. Thanks to these mounted laterally on the outside of the tank (the only downside is that it cannot be used with other tanks without buying additional equipment, which I intend to do), I can even easily check the temperature from a distance. The easy to read screen is big enough but doesn't get in the way when I'm looking at my tank as it's transparent through the readings. Time will tell how long the battery lasts but for now it does everything I hoped it would and I'm very happy with it. I would highly recommend this very reasonably priced (even 5% off the price!) tank accessory. Now I'll buy some more.