The Pro-Line Digi-stat is designed to give automatic temperature control for koi ponds.
Operating in the range of 0-30c, this highly accurate thermostat will hold the water temperature with +/-0.1c.
The unit is programmed with an automatic temperature gradient control which eliminates temperature shock for the fish when changing settings.
IP68 rated for outdoor use. Comes with 3m submersible probe as standard.