Features:Fast and accurate measurement results.Open phase indication and phase rotation indication 2 functions.Checks open phases and identifies 3 phase sequence condition.With simultaneous indications via LEDs and audible buzzer sound.Indicates direction of the rotation.Ensures the object being tested is not damaged from incorrect wiring.Portable, compact design and meet the IEC348 electrical safety standards.Specifications:Working Voltage: 60V-600V (AC, three phase)Continuous Use Time: 60 minutes at 60V AC 4 minutes at 600V ACWorking Frequency Range: 20Hz400HzMaximum Withstand Voltage: 2000V or min (impulse voltage 4000V)Test Leads: Double insulationTest Lead Length: Approx. 1meter or 3.3ftProtection Level: 2000VOperating Temperature: 10-60Size(L x W x D): Approx. 8.3 x 6.5 x 2cm or 3.27 x2.56 x 0.79inWeight: 253g(approx.)Package Includes:1 x Tester 3 x Test Leads with Clips1 x Bag..