Features:
1. One Unit with two functions: Check the phase sequence and indicate the phase is open or not.
2. Safe and reliable: With alligator clips, easily involve the terminals of the control panel, guaranteeing reliability and safety.
3. Wide voltage test: It can check 200V to 480V AC three-phase voltage,high performance.
4. Easy to use: With LED light to show if the phase is open or not,supports buzzer indication.
5. Portable design: Small and light weight,with a carrying bag, convenient to carry