Compact & Portable: Our NCV digital multimeter is compact and lightweight, easy to operate, carry, and store. A must-have tool for home appliance troubleshooting, automotive circuit inspection, and electrical equipment testing and maintenance Safe to Use: The housing is made of sturdy plastic with an IP20 protection rating, making it suitable for various working environments. It complies with CAT II 1000V safety standard, ensuring safe operation in high-voltage conditions User-Friendly Design: Optimized with multiple functions including AC voltage frequency measurement, live/neutral wire identification, NCV (non-contact voltage) detection, analog bar graph display, negative polarity indication, over range indication, data hold, max/min value recording, and low battery indicator High-Accuracy Testing: Equipped with the TRMS technology, the voltmeter current tester can accurately measure the true RMS of non-sinusoidal waveforms (square waves, sawtooth waves, and inverter outputs). 6000-count LCD backlight screen ensures clear and easy-to-read results All-in-One Functionality: The VEVOR TRMS multimeter supports DC/AC voltage, current, resistance, capacitance, frequency, temperature, diode, continuity, and duty cycle testing — delivering comprehensive functionality for home DIYers and professional electrical measurements