Wall Switch DH100W for HumidityThis Wall Switch is for control of the humidity in your bathroom. This Wall Switch by Nutone DH100W is a white single gang wall switch for dehumidistat and is a dual voltage 240Volt or120Volt. This wall switch is for humidity and with this dehumidistat it has variable settings from 20 to 80% relative humidity with and off and on switch. This dehumidistat fits a single gang box and is a rotary control. This wall switch is provided with an installation guide for easy assemble with the product. On 110V is up to 10 amps and 240V is 5 amps.