Water temp is important to your livestock and some plants.
Checking your temp with this digital thermometer has never been easier as it sits outside your tank so can be hidden from view if you like, only the probe needs to be in the tank.

Temperature range: -50c - +70c
Accuracy: + - 1 degree
Switch for C/F
Powered by 1 LR44 Button battery (included)
On/Off Power button
Cable length 100cm