 Pond thermometers are a great way to find out the temperature of your pond. This is important for a number of reasons. Over summer if you have a small pond it is worth knowing if the pond is getting too hot and will need some shade and fresh water to try cool it down.
A pond themrometer is essential if your pond is not 3 foot plus deep then over winter you will need to know the temperature to decide when to take your fish to an aquarium indoors as below a certain temperature your fish could be harmed. | 
