UNI T UT261B Phase Sequence Tester Lack Meter Motor Rotation Indicator AC 40 700V 90 600V (UT261B)

2-in-1 Core Testing Functions: Supports contact phase sequence detection (judges positive/negative phase sequence of three-phase systems via test leads) and non-contact motor rotation test (detects clockwise/counterclockwise rotation of single/three-phase motors without wiring), meeting the core testing needs of three-phase electrical industrial equipment. Magnetic Field Detection Capability: Can detect magnetic fields in solenoid valves and other equipment: place the meter in the target area and press the power button; the illuminated R/L indicator confirms the presence of a magnetic field, expanding industrial testing applicability. Industrial-Grade Safety Protection: Complies with IEC61010-1 CAT III overvoltage category (pollution degree 2) with double insulation protection. Equipped with insulated alligator clips with finger guards to prevent electric shock; avoid use in explosive/humid environments for enhanced safety. Portable & Easy to Operate: Powered by a 9V/6F22 battery (included), this handheld meter comes with a cloth bag for easy carrying. The one-touch power button only activates when pressed, and LED indicators provide intuitive test results; complete accessories enable immediate use out of the box. Reliable Brand Quality: Produced by UNI-T, a trusted brand in electrical testing, the meter includes a certificate of conformity and detailed user manual. Only qualified technicians are recommended for maintenance, with clear battery replacement steps for long-term reliable performance.