Whenever electrical power falls below 104 volts or rises above 132 volts, the EMS automatically shuts down power to the RV. Once the electrical power rises above 104-volts, or below the 132-volt level, the time delay indicator flashes for the preset time and then automatically restores power to the RV. Features 3-mode surge protection, reverse polarity protection, open neutral

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov