Uni-T Phase Sequence Tester

The UNI-T UT261B phase sequence tester is a professional electrical testing device for verifying phase sequence, detecting phase loss, and determining motor rotation direction in three-phase systems. This successor model to earlier UT261 series devices operates in voltage ranges of 40-700V AC and 90-600V, making it suitable for various industrial and commercial electrical applications. The tester features a compact design with dimensions of 123mm x 71mm x 29mm and a net weight of 180g, crafted in a distinctive red-gray color scheme for easy identification in toolboxes. Comprehensive measurement functions include AC current up to 1000A, AC/DC voltage up to 1000V, resistance, capacitance, frequency from 10Hz to 10kHz, continuity testing, diode testing, and duty cycle measurement. The device has a 45mm jaw opening for current measurements and practical features such as auto-ranging, data hold, MAX/MIN recording, relative mode, backlight, flashlight, and automatic shutdown with low battery indication. Certified to CE, UKCA, and cETLus standards, the UT261B meets safety requirements for CAT II 1000V and CAT III 600V environments. It operates with a standard 9V battery (Type 6F22), and the package includes three test leads with alligator clips, a battery, an English manual, a carrying case, and gift packaging. This instrument provides reliable phase sequence verification and motor direction indication while maintaining the durability and precision expected from professional electrical testing equipment.