HYDROS Temperature Sensor Fish we use and recommend Johnny’s

we use and recommend Johnny’s Selected Seeds

11″ x 22″ watertight base tray

The Test and Reset buttons allow for periodic testing

a sump tank and a 200 Gallon Fish Tank

HYDROS Temperature Sensor Fish we use and recommend Johnny’sProduct Highlights The HYDROS Temperature Sensor has a long 79 cord that plugs into any Sense Port on the Control 2, Control 4, X3, and future HYDROS devices. This sensor must be plugged into a HYDROS Controller for this sort of automation to occur. HYDROS Controller NOT included. About This Item Description Use multiple temperature sensors on your system for safety and redundancy. Place one in your fish tank and another in your sump. This can help if