The KSD1004 defrosting thermostats are mainly used for the control of the freezing equipment, and at the same time may be also applicable for the temperature control in the aviation, auto and medical industries. They are widely applied by the world outstanding designers. Applicable Scope & Features KSD1004 serial 3/4 Disc(Φ19mm) bi-metallic defrosting temperature controller is used for temperature-control in refrigerators and air-conditioner, also applicable for automatic temperature control in dehumidifier,refrigerator heating-defrosting and system temperature limit safety arrangement .Its structure features application of resin to seal the electric parts completely,allowing to be installed in a narrow space,boasting easy installation,moisture-proofness and wet-proofness,etc.