Johnson Controls A421ABD-02 SPDT Electronic Temperature Control 120-240V 6' Sensor W/Defrost Cycle

The Johnson Controls A421ABD-02 is an electrical single-stage temperature controller. This easy-to-use system comes with a durable stainless steel remote sensor. This is easily achieved due to the flexible position of the 6-foot sensor wire within the controlled environment as well as achieving the right temperature reading. This type has the unique feature of having a defrost cycle as part of its operation. A SPDT switch allows the control to switch on heating or cooling depending on the prevailing weather conditions. This is suitable for numerous HVAC uses such as refrigerators, showcases, and walk-in coolers that demand temperature control and defrost cycles.