Extech 480400 Phase Sequence Tester, 15 Hz to 400 Hz, 40 V to 600 V, CAT III 600V, For Three Phase, Digital

Extech 480400 phase sequence tester, 40 to 60 v, 2.7w phase sequence tester has a 40 to 600 v rated range for testing phase orientation of 3-phase power sources over a 15 to 400 hz frequency range. Multi-line graphical lcd indicates phase orientation clockwise or counter-clockwise and whether each of the phases is live. No battery required. complete with: cable three large color coded alligator clips pouch case