Features: Versatile Digital Tester: Measure DC/AC voltage, resistance, capacitance, frequency, and continuity. Includes diode testing, NCV non-contact voltage measurement, and phase sequence detection. Smart Auto Measurement: Automatically identify and measure DC/AC voltage, resistance, and continuity signals. User-Friendly Display: Equipped with a 1.3-inch LCD screen and a signal intensity indicator bar. Includes a data hold function to freeze and easily view measured data. Energy Efficient: Powered by two AAA batteries, featuring a 15-minute auto power-off function to conserve energy. LED Illumination: Built-in LED light for working in dark spaces. Safe Operation: Conforms to IEC61010-1 CAT.III 600V overvoltage safety standards and pollution level 2. Compact and Portable: Lightweight pen-type digital multimeter for easy portability. Specifications: DC Voltage: 4V/40V/400V/600V AC Voltage: 4V/40V/400V/600V Resistance: 4000Ω/ 40kΩ/400kΩ/4MΩ/40MΩ Capacitance: 40nF/400nF/4µF/40µF/400µF/4mF Frequency: 40Hz/400Hz/4kHz/40kHz/400kHz/4MHz Material: ABS Display: 4000 counts Sampling Rate: Approx. 3 times/second Over Range Indication: "OL" Temperature Coefficient: 0.1 x accuracy/℃ (28℃) Usage Environment: CAT.III 600V, pollution level 2, altitude