Johnson Controllers Temperature Controller A28AK-1C Two Stage Flange Mounted Duct, 2-SPDT

Johnson controllers mechanical temperature controller a28ak-1c two stage flange mounted duct, 2-spdt the a28ak is a two stage mechanical temperature control with special air coil sensing element and adjustable mounting flange. features: flat flange mounting with special coil element permits positioning of sensing bulb in the appropriate portion of the air stream2 spdt snap-acting switchesunaffected by barometric pressure or cross ambient temperatures