Item Type:PhaseSequenceMeterMaterial: ABSSize: Approx. 8.3x6.2x2.5cm/3.27x2.44x0.98inGross Weight: Approx. 223g/0.49lbVoltage: 60V-600VWorking Frequency: 20Hz-400Hz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; } 1Small and Convenient: The rotary field tester comes with an instrument storage and transport kit, which is small in size and light in weight, and easy to carry. 2Function: The three phase energy meter rotating magnetic field measuring device can test the frequency range of 20Hz to 400Hz, which is efficient, reliable and simple. 3Easy to use: The phase tester has two function indicators to indicate whether the phase is on or not, and supports buzzer indication. 4Wide Voltage Test: Can detect three phase AC voltage from 60V to 600V, excellent performance. The tester is equipped with 3 clamping cables for convenient installation. 5LED Indicator Design: Green LEDs show the correct phase sequence and beep intermittently. The red LED indicates that the order is reversed and beeps continuously.