1. The signal generator is small in size, has many functions, easy to operate and easy to carry.2. The key layout is reasonable, all functions have independent corresponding keys, easy to operate.3. Built-in battery, low power consumption, long standby time.Features:[Auto Identification Measurement] High accuracy, wide measuring range, 1999 counts, automatic recognition. It can test AC voltage, DC voltage, resistance, breakpoint and live wire.[NCV Induction] Bring the NCV part close to the measured object, when a nearby AC voltage is detected, the red LED light will flash and an alarm buzzer will sound to indicate.[Backlight Screen & Flashlight Digital screen with backlight greatly enhances the reading experience Flashlight to illuminate the measured object without fear of dark environments.[Battery Operated & Compact Size Powered by 2 AAA batteries not included), auto shutdown to save power. Ergonomic design and compact size, portable and lightweight to carry.Note:1. Please read the user manual carefully before use.2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.Specifications:Color: Black & RedMaterial ABSScreen Backlight DisplayMax. Count: 1999 CountsMax. Voltage: 600V DC or ACMax. Resistance: 10MPower Supply: 2 * 1.5V AAA Battery (NOT included)Flashlight: YesOn-off Beep: YesNCV Induction: YesLive Detection: YesAuto Shutdown: YesData Retention: YesItem Size: 120.4 * 59.2 * 24.2mm / 4.74 * 2.33 * 0.95inPackage Size: 165 * 110 * 45mm / 6.50 * 4.33 * 1.77inPackage Weight: 188g / 6.63ozPackage List:1 * Smart Digital Multimeter2 * Measuring Pen1 * User Manual (English)