Humidity Controller; Type Digital; Switching Action DPST; Voltage Rating 24 Volt AC; Frequency Rating 50/60 Hertz; Color Premier White; Humidity Rating 10 to 60 Percent RH; Overall Dimensions 4-1/2" Width x 1-5/16" Depth x 3-7/16" Height; Mounting Type Wall/Duct Mount; Temperature Rating -20 to 120 Deg F; Inclusions/Features HumidiPRO Control, Outdoor Sensor, Mounting Hardware; Used With Humidifier, Dehumidifier; Terminal Designation C, R, U, U, S, S