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

Work with greater confidence when checking three-phase electrical systems. The HY850 is a phase sequence tester designed for electricians, maintenance technicians, installers, and industrial professionals who need quick phase rotation checks without contacting exposed conductors. Its clamp-type induction system works over insulated wires from 1.5–16mm and supports AC 60V–1000V at 45–65Hz. Clear audio and visual signals help identify positive phase, reverse phase, and phase loss at a glance, while four rear magnets keep the tester securely positioned on compatible metal equipment during use.

Key Features

• Non-contact inductive clamps help check phase sequence without stripping cable insulation or touching bare live conductors.
• Wide AC 60V–1000V range plus live-wire detection, power inspection, breakpoint location, and line-maintenance functions.
• Dynamic lights and audible alerts clearly distinguish positive and reverse phase sequence.
• Four rear magnets enable convenient hands-free mounting; auto power-off after about five minutes helps conserve battery life.
  
  

Why Choose Our HY850 Non-Contact Phase Sequence Detector?
Unlike conventional testers that may require direct electrical contact, the HY850 combines non-contact testing with a broad voltage range and magnetic mounting for more convenient field work. Comparable professional phase rotation meter designs also emphasize non-contact sensing and magnetic mounting, making these valuable features for efficient three-phase troubleshooting.

Perfect For

• Electrical installation and maintenance
• Three-phase motor and equipment checks
• Distribution box and power-line inspections
• Industrial control and manufacturing environments
• Troubleshooting phase sequence, phase loss, and wiring issues
  
  

Make Three-Phase Checks Simpler
Add the HY850 to your toolkit for fast, clear, and convenient phase-sequence testing. Order today and bring greater efficiency to every three-phase inspection.