The PSK-50 Portable Surge Protector Kit contains a separate receptacle tester to detect wiring faults at the pedestal and a surge module to attach to the detachable power cord. Separating the two functions reduces the size of the product while increasing protection from inclement weather.• Kit contains receptacle tester and surge module• Single indicator tests Open Ground, Open Neutral, Open Hot, Hot/Neutral Reversed, and Hot/Ground Reversed• Surge module contains surge protection indicator alerting user when depleted• 50A Surge Module Rating: 45, 000A max spike / 2, 030 joules Tests Open Ground, Neutral, Hot & Reversed Hot/Neutral, Hot/Ground Module contains surge protection indicator 50A Rating: 45, 000A max spike/2, 030 joules | Progressive Industries PSK-50 Portable Surge Protector Kit, 50-Amp