American Thermal Liquid Crystal Aquarium Thermometer Vertical Small

I have a little submersible heater in my 5 gallon betta tank. I could tell it was working and the water felt warm, but I was curious ‘just how warm’. I stuck this on the glass on the opposite side of the hexagon tank (didn’t want it on the same wall as the heater is stuck), and it read out the temperature right away. Also this saved my butt (and my betta) as somehow his heater became UNPLUGGED overnight (I blame my cats; they are Rulers of the Universe) and when I went to feed Elvis, I saw the temp had dropped to 72. Plugged the heater back in, and it’s already heating back up (yay).Included is a picture of The King himself, Elvis, the Blue Mustard Betta! He’s a happy dude!