Features:The phase tester is used to measure the opening phase condition and order through LED and buzzer.With high performance, the phase tester can check a large of range of AC three-phase(60V~600V).3-color double insulation test leads, with approximately 1 meter length.Equipped with 3 alligator clips to involve the terminals of the control panel to be tested, guarantee reliability and safety.The tester is small, light and portable, it is designed to facilitate the operation to the maximum.Design with lanyard for hanging on wrist to avoid the tester from falling.Specifications:Material: ABSOperating Voltage: 60~600V AC (3 Phase)Limit Support Voltage: 2000V/minute (impulse voltage 4000V)Operating Frequency Range: 20~400HzLimit time for Continuous Use: 60 minutes at 60V ACV, 4 minutes at 600V ACItem Size: 85 * 64 * 23mm / 3.35 * 2.52 * 0.91inItem Weight: 187g / 6.61ozPackage Weight: 221g / 7.80ozPackage Size: 17 * 11 * 5cm / 6.69 * 4.33 * 1.97inPackage List:1 * 3 Phase Rotation Tester3 * Alligator Clip1 * Carrying Case1 * Manual (English)