Humidifier Control, Plug In Outlet With Piggy Back, Adjustable Range 30 to 90% RH, Differential +/- 1 RH %, Voltage 120, Contact Rating 15A Resistive 3A Inductive, Switch Action Close on Humidity Decrease, Switch Type SPST, Height 5 1/2 In, Width 2 3/4 In, Depth 1 3/4 In