Kew Technik, Model SOK 60 Socket Tester 16A 400V ac RS Calibration

16A BS4343 4 pin (3P + E) socket tester for testing 400V systems.

Tough rubber holster for heavy duty use
Phases clearly identified at L1, L2, L3
Instant phase sequence is given by 3 green LEDs rotating clockwise with a continuous tone or 3 red LEDs rotating counter clockwise with a warbling tone
Detects missing phases and disconnected earth

3 LEDs light - all phases present
LEDs out - phase missing
Green LED - protective earth present
Red LED - disconnected protective earth

16A 4 pin socket to 32A 4 pin plug
Converts SOK 60//16 into 32A tester