W43 Mechanical humidistat

This room humidistat is designed to control humidification or dehumidification equipment. It provides SPDT control. The sensing element consists of carefully selected and processed human hair, proven to be the most sensitive and stable material known for this application. Under normal conditions these controls retain their sensitivity and accuracy for many years.

• Wide range 0 to 90% R .H .
• Dust tight Penn switch
• SPDT Contacts
• Field adjustable high and low limit stops
• Separate mounting plate
• Suited to be used in the presence of A2L refrigerants