A UNI-T Phase Sequence Meter is a professional electrical testing instrument designed to determine the phase sequence and phase rotation of three-phase power systems. It helps electricians, maintenance technicians, and engineers verify correct wiring connections before commissioning motors, generators, pumps, and other three-phase equipment. The device quickly identifies clockwise or counterclockwise phase rotation and can detect missing phases, helping to prevent equipment damage and operational errors. Its handheld design makes it convenient for field inspections, troubleshooting, and routine maintenance. Built with durable construction and clear indicators, it provides reliable performance in industrial, commercial, and utility applications where accurate phase verification is essential for safe and efficient operation.