H46 SPACE HUMIDISTAT   provides dehumidifying  control. 
Used in Appliances, Heaters, Fans, Air conditioning humidity control. 

TRADELINE. DEHUMIDIFIER CONTROL WALL MTD. W/CASE AND COVER KNOB.
NYLON ELEMENT MAKES CIRCUIT ON RH INCREASE. 20-80%
Motor Load 6 Amp 120V  Black cable and power plug  Pre-wired for 120VAC

Standard  H46 Humidistat           Wired Humidifier - Dehumidifier