Product detailsFridge Guard prevents damage to electrical and electronic equipment/appliances from power fluctuations, specifically over and under voltage levels of long duration. When the mains power supply fluctuates outside pre-set tolerances (nominally 190V and 260V) the power to your equipment is disconnected by the Switcher.The Automatic Voltage Switcher Fridge Guard ?then monitors the voltage for a short period to ensure the power has stabilized before re-connecting. In addition, a start-up delay period provides protection against power-back surges commonly experienced after resumption of power in a power cut situation. Surge and spike protection is also incorporated to ensure protection. For complete protection simply plug the Automatic Voltage Switcher Fridge Guard ?into the mains and plug in your appliances.?Fridge Guard prevents damage to electrical and electronic equipment/appliances from power fluctuations, specifically over and under voltage levels of long duration. When the mains power supply fluctuates outside pre-set tolerances (nominally 190V and 260V) the power to your equipment is disconnected by the Switcher.The Automatic Voltage Switcher Fridge Guard ?then monitors the voltage for a short period to ensure the power has stabilized before re-connecting. In addition, a start-up delay period provides protection against power-back surges commonly experienced after resumption of power in a power cut situation. Surge and spike protection is also incorporated to ensure protection. For complete protection simply plug the Automatic Voltage Switcher Fridge Guard ?into the mains and plug in your appliances. Fridge Guard prevents damage to electrical and electronic equipment/appliances from power fluctuations, specifically over and under voltage levels of long duration. When the mains power supply fluctuates outside pre-set tolerances (nominally 190V and 260V) the power to your equipment is disconnected by the Switcher.The Automatic Voltage Switcher Fridge Guard ?then monitors the voltage for a short period to ensure the power has stabilized before re-connecting. In addition, a start-up delay period provides protection against power-back surges commonly experienced after resumption of power in a power cut situation. Surge and spike protection is also incorporated to ensure protection. For complete protection simply plug the Automatic Voltage Switcher Fridge Guard ?into the mains and plug in your appliances. Fridge Guard prevents damage to electrical and electronic equipment/appliances from power fluctuations, specifically over and under voltage levels of long duration. When the mains power supply fluctuates outside pre-set tolerances (nominally 190V and 260V) the power to your equipment is disconnected by the Switcher.The Automatic Voltage Switcher Fridge Guard ?then monitors the voltage for a short period to ensure the power has stabilized before re-connecting. In addition, a start-up delay period provides protection against power-back surges commonly experienced after resumption of power in a power cut situation. Surge and spike protection is also incorporated to ensure protection. For complete protection simply plug the Automatic Voltage Switcher Fridge Guard ?into the mains and plug in your appliances.