Honeywell Home H8908B1002 Humidistat 24v for wall or surface duct mount. These Mechanical humidity controllers provide automatic control of humidifiers and dehumidifiers or ventilators in central heating and air conditioning systems.
Features:
Fully enclosed, SPST, snap-acting, dust-proof switch are designed for wall or surface duct mounting
H8909 and H46 models include Positive ON-OFF settings permit manual operation of controlled equipment.