【Automatic Range Detection】Efficiently identifies and measures AC/DC voltage, resistance, and continuity without manual range selection 【Rotary Dial Interface】Features a user-friendly rotary dial for quick and intuitive function selection and adjustment 【Versatile Measurement Capabilities】Accurately measures various electrical parameters including voltage, resistance, and includes a beeper for continuity testing 【Handheld Design】Compact and portable, ideal for on-site electrical diagnostics and troubleshooting 【Bi-Directional Dial Operation】Allows both clockwise and counterclockwise rotation for flexible function selection to suit user preference Specifications: Net wveight: about 192g Display: High Brightness Color Screen Display Maximum Display: 5999 (35/6) Digit Automatic Polarity Display Measurement Method: Dual Slope A/D Conversion Sampling Rate: Approximately 3 times per second Overrange Display: Highest Digit Displays "OL" Operating Environment: (0~40)℃, Relative Humidity <80% Power Source: Battery (not included)