Chauvin Arnoux VT 35 [P06230301] Multimetrix PCCB Quick Tester CAT II 250 V LED. The Multimetrix VT35 is the socket tester for testing of differential circuit breakers from 10 to 35 mA. It detect no phase, no earth, no neutral, phase/neutral and phase/earth inversion. Easy and quick connection by 2P+T power socket.