HY850 Non-Contact Phase Sequence Detector AC 60V-1000V 3-Phase Rotation Tester with Magnetic Back(Black)

1. Uses non-contact clamp induction measurement for safe and convenient operation.
2. Features power-on indication and automatic power-off functions.
3. Provides dynamic audio and visual indicators for clear, at-a-glance status of positive or reverse three-phase power sequence.
4. Equipped with 4 magnets on the base plate to securely attach the instrument to metal equipment casings during testing for hands-free convenience.
5. Functions: Phase sequence detection (positive phase, reverse phase, phase loss), live wire detection, simple power inspection, breakpoint location, and line maintenance.

Parameters:
1. Clamp Wire Diameter: 1.5mm to 16mm
2. Power Supply: DC 3V, 2 x AA alkaline dry batteries, continuous use for approximately 70 hours (batteries not included)
3. Live Voltage Range: AC 60V-1000V, 45Hz-65Hz (continuous sine wave input)
4. Audio Prompts: Positive Phase: Instrument emits intermittent short beeps; Reverse Phase: Instrument emits a continuous long beep
5. Battery Indicators: POWER indicator turns on after power-on; LOW BATTERY indicator turns on when battery power is low
6. Magnetic Force: Equipped with four magnets on the back, allowing it to hang on distribution boxes with a maximum weight capacity of 800g
7. Auto Power-Off: Automatically powers off after approximately 5 minutes of inactivity
8. Clamp Lead Length: Approximately 0.6m
9. Insulation Strength: Greater than 500M Ohm between the test clamp and the housing