Multi-Functional 3 Phase Smart Phase Voltage Current Tester with 99 Group Data Storage for Industrial Power Quality Analysis. Comprehensive Measurement: Simultaneously measures voltage, current, phase, frequency, power, and vector sum in 3-phase systems. 99 Group Data Storage: Stores up to 99 sets of test data for efficient record keeping and analysis. 3.5 Inch TFT Display: Features a graphical menu interface with vector diagram display for clear visualization. Long Battery Life: 3000mAh rechargeable battery provides approximately 10 hours of continuous operation. Wide Measurement Range: AC Voltage 0-600V, AC Current 0-30A, Frequency 45-65Hz, and Power up to 12kW. CE and ISO Certified: Complies with IEC61010-1 CAT III 600V safety standards and ISO 9001 quality management. Customizable Product: Offers full customization options including designs and samples based on customer requirements. One Year Warranty: Includes 1-year free warranty with free parts replacement for non-man-made damage.