Programmable Touchscreen Electric Power ControllerSafe and precise heating output control with many applications. Control heating and cooling with this fully programmable touchscreen controller, with single and three phase 30A power outputs (typically used for heating), and 120V single phase output (typically used for cooling). For heating, can be used with our 2000W, 4500W, 5500W or 9500W (3 Phase) electric, stainless water heating elements. All components over 12V are cULus certified and