Martindale PC104 16A 3-Phase Socket Tester

The Martindale PC104 is an easy-to-use three-phase socket tester that may be used to rapidly determine whether or not 4 pin 415V 16A sockets have phase, phase sequence, and PE. After the PC104 is plugged into the selected outlet, the socket tester will instantly start to assess the socket, indicating with a green LED when the proper phase is present and a red LED when a phase is absent or malfunctioning