Johnson Controls W42AA-1C These room humidistats are 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... $188.14 cartAdd to Cart
Johnson Controls W43A-14C These room humidistats are 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... $188.14 cartAdd to Cart