Designed to check the phase sequence.With LEDs to show if the phase is open or not, Supports Buzzer indication.Highly reliable, can check a large of 60V to 600V AC three-phase.With Alligator Clips, easily involve the terminals of the control panel, guaranteeing reliability and safety.Small, light and portable, convenient for using.DIY Supplies:ElectricalAccuracy Class:0.1Operation Voltage:60V-600V AC, three phaseLimit Support Voltage:2000V/minute (Impulse voltage 4000V)Operation Frequency Range:20Hz-400HzLimit Time for Continuous Use:60 minutes maximum at 200V AC4 minutes maximum at 600V ACPhase Sequence Indicator LED:Green for correct phase sequence, Intermittent BeepRed for reverse phase sequence, Continuous BeepTest Leads:Double insulation, Approx. 80cm cable lengthYellow for U phase (L1.R)Green for V Phase (L2.S)Red for W phase (L3.T)Net Weight:189gColour:As ShownMaterial:PlasticSize:8 x 6 x 2.4cmPackage Contents:1 x 3 Phase Sequence Tester3 x Alligator Clips1 x Pouch1 x English User ManualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.