SM852B 3 Phase Rotation Tester Indicator Detector Meter(Orange) 1. It is used to measure the opening phase condition and order through LED and Buzzer. 2. Measuring frequency range:20Hz~400Hz 3. Operational Voltage:60V-600V (3 Phase AC) 4. Limit Support Voltage: 2000Vminute (impulse voltage 4000V) 5. Limit Time for continuous use: - 60 minutes maximum at 200V AC - 4 minutes maximum at 600V AC 6. Test Leads: Double insulation, with 67cm length (Approx.) 7. One unit with 2 functions: The instrument was designed to check the phase sequence, and at the same time it has LEDs to show you if the phase is open or not. 8. Alligator Clips: They can easily involve the terminals of the control panel to be tested, guaranteeing reliability and safety. 9. Highly reliable: It can check a large range of 60V to 600V AC three-phase. The instrument guarantee high reliance and performance. 10. Functional Design: Small, light and portable. It was designed to facilitate the operation to the maximum. 11. Dimensions: 85x64x23mm(Approx.)