Martindale, Model PC104/16 Socket Tester 16A CAT III 300 V

The PC104 is a 3 phase socket tester designed to quickly check for the presence of phase, phase sequence and PE in 4 pin, 16A, 32A and 63A sockets.

This device includes a four-pin socket for connection to compatible sockets which is attached via a cable to the main body of the socket tester
Once it's connected up the device will evaluate phase presence, phase sequence and PE presence and display the results as coloured LED indicators
The device includes a handy guide on the front that shows the different possible LED indications
L1, L2 and L3 are present
L1, L2 and L3 are missing, PE present
L1 error
L2 error
L3 error
PE error