HYDROS Magnet Mount Temperature Sensor

The HYDROS Magnet Mount Temperature Sensor is an easy and affordable way to prevent your aquarium water from becoming too cold or too hot. It monitors the water temperature in your aquarium so you can keep it within the safe zone for fish, coral, and inverts. The sensor plugs into any Sense Port on a HYDROS device (like the Control 2 or Control 4) and does not require any additional power source.