Faithfull FAIDETSOC Socket Polarity Tester

The Faithfull Socket Polarity Tester tests sockets quickly and easily. It can be used to determine whether socket wiring is correct or incorrect.

Used in conjunction with the coding table provided, the three combined lamps indicate the state of the sockets wiring condition. The compact and durable design is easy to operate and read. Just plug into a socket for automatic detection.