PROTECTS Refrigerators (up to 32 CU ft.), Freezers (up to 25 CU ft.), Air Conditioners (up to 15000 BTU), Furnaces, Microwaves, Dishwashers, Printers, Scanners, Copiers, Treadmills, Exercise Bikes, Garage Door openers, RV power tethers etc. CE, ETL and FCC certified. HIGH POWER 120-Volt, 20-Amp, 2400-Watt, 1.0 HP. Protects both large and small appliances. Configurable voltage tolerance range between minimum 90-105V (adjustable) and maximum 140V. A joules rating is not applicable to this device. SMART DISCONNECT for 3 minutes when a under/over voltage event occurs. Automatically reconnects again when a stable voltage level is detected for over 30 seconds. Fast surge/sag reaction time of