Ranco J10 Adjustable DEHUMIDIFIER Sensor  Humidity Control Switch SPST 250v 3.3A

-Ranco # J10-6503-200. 

-Similar to a thermostat except it responds to relative humidity rather than temperature. 

-Consists of a humidity sensing element, adjustable setpoint cam and an electrical switch. 

-The sensing element changes length in response to the exposed relative humidity. 

-To move the switch mechanisms at the appropriate switch points. 

-Set adjustment screw to a certain limit. 

-when that limit is reached a S.P.S.T. switch opens or closes. 

-Outer dimensions, 86 x 26 x 40mm, excluding adjustment shaft and switch terminals.