C206T is a heating output temperature controller (No Cooling Controller) with day and night temp control for breeding and planting, etc.With its plug-n-play design, it can easily controls the temperature of your heat device, providing constant optimum temperature for the physiological needs of animals and plants.C206T can be widely used in over-heat protection and automatic temperature control system of all sorts of electrical equipment for aquarium, pets breeding, hatching, fungus fermenting, and seed germination accelerating, etc. Specification: Input: 100265VAC 50/60HZ Temperature Control Range: -50100C / -58212F Heat Differential Value: 0.315C / 130F Temperature Calibration: -9.99.9C / -1515F Ambient Temperature: -3075 C (-22167F) Dimension: ( 3.66(L)2.48(W)1.34(H) in ) Package Included: 1 x 13.5A Temperature Controller C206T 1 x 6.56FT Sensor 1 x Manual.