1)AVS Automatic Voltage Switcher 2)Protect against Over-Voltage,Undervoltage, Surges/Spikes,Power back surge 3)Full automatic Automatic Voltage Switcher (AVS13 APPLIANCE GUARD)Protection for Air conditioners • Large fridge/freezers • Whole office • Direct wired equipment AVS13 MicroProtects against:Over-Voltage Under-voltageSurges/Spikes Power back surges Description:Low power (under-voltage) ...