The Marathon 411-GPST-15 is a LCD-displayed, weather-resistant surge protector suitable for outdoor applications. This product is designed to protect electrical systems from power surges and is capable of withstanding a 15,000A surge rating. It features UL Approved Type 3R polycarbonate enclosure, seven NEMA 5-15R outlets, built-in over/under voltage protection, and a 90-minute audible signal for surge protection failure. A diagnostic LED indicates the operation status of the surge protector, and a built-in fault current indicator helps pinpoint the source of the surge. The NEMA 5-15R outlets are protected by surge/spike protection, ground fail detection, and power fail detection.