Allows precise humidity control with a 20%-90% range. Change from humidification to dehumidification with a flip of a switch. Controls a humidifier, dehumidifier, or fan. Durable powder-coated steel enclosure will stand up to the toughest conditions. Grounded piggy-back cord is easy to use. Ventilation louvers help avoid water accumulation. Built-in 4% split differential. 15 Amps/120 Volts/60 Hz. Allows precise humidity control. 20% - 80% range lets the user adjust humidity level to ideal settings. Change from 'humidification' to 'dehumidification' with just a flip of the switch. Controls any 120 volt - 15 amp humidifier, dehumidifier, or fan. Durable powder-coated, steel enclosure will stand up to the toughest conditions. Grounded piggy-back cord is safe and easy to use. Ventilation louvers help avoid water accumulation and possible damage to the unit. Built-in 4% split differential/deadband. 15 Amps/120 Volt/60 Hz. (CLEARANCE FINAL SALE)