This is a multimeter, which has automatic identification design make it very easy to use. Connect the test lead to the voltage and resistance, meter automatically measure AC / DC voltage, resistance and continuity. Features: 1. Dual Mode: Multimeter supports auto mode and manual mode. Press the power button for 1 second to enter auto mode, which can automatically measure AC / DC voltage, resistance and continuity. 2. Bright LED Flashlight: LED flashlight lets you test efficiently and comfortably anywhere, indoors and outdoors, day and night. 3. Live / Neutral Wire Check: Safe and easy to distinguish the live / neutral wire by comparing the strength of the detected voltage, the wire that detect the stronger voltage signal is live wire. 4.LCD Display: Greatly enhance the reading experience, the lighted up numbers and letters make it very easy to read, even in bright sunlight or poor light. 5. High Efficiency: Single test lead design make the measurement more efficient, especially for electronic components maintenance. You no longer have to worry about the tip of the test lead moving while reading the test results. Note: 1. When measuring high voltage, be careful to avoid electric shock. 2. Do not input AC or DC voltage higher than 500V, it may destory the meter. 3. Disconnect the test leads from the circuit when completed measurement. 4. Production compliance is 600V, and the maximum range is 500V. 5. Due to manual measurement, the size may be slightly different. Thank you for your understanding. 6. Due to different light conditions and different monitors, item color displayed in photos may be showing slightly different from real object. Specifications: Brand: BSIDE Model: Z1 Color: Black Shell Material: ABS Display: LCD Maximum Display Value: 2000 Digits Polarity Indication: Self-indicating, '-' means negative polarity Over-range Display: 'OL' or '-OL' Sampling Time: The meter figures show about 0.4 seconds Automatic Power Off Time: 5 minutes Battery Low Voltage Indication: LCD display symbol Operational Temperature And Humidity: 0~40, 0~80% RH Storage Temperature And Humidity: -10~60 , 0~70%RH Battery: 1.5V AAA x 2 ( Not Included ) Automatic Range: YES Full Measuring Range Overload Protection: YES Continuity: YES ( If the resistance < 50the buzzer sounds ) V-Alert (NCV): YES Live / Neutral Wire Check: YES Flashlight: YES Auto Mode: Automatic identification of AC voltage, DC voltage, resistance Operating Altitude: 2000m Multimeter Size: 2.25 * 2.2 * 18.8cm / 0.89 * 0.87 * 7.40in (L*W*H) Packing Size: 6.5 * 3.3 * 19.5cm / 2.56 * 1.30 * 7.68in (L*W*H) Multimeter Weight: 52g / 1.83oz ( without battery Gross Weight: 120g / 4.23oz Package List: 1 * Multimeter ( Without Battery ) 1 * Test Lead 1 * Screwdriver 1 * Instruction Manual ( Chinese & English )