Experience precision and convenience with this pen-type digital multimeter, designed as a compact 3 3/4 bit true RMS automatic scanning instrument. Featuring automatic identification measurement, this digital meter intelligently distinguishes between voltage and resistance without the need for manual dial adjustments, ensuring effortless and accurate readings every time. Key Features: · True RMS Automatic Scanning: Provides highly accurate measurements of AC/DC voltage, resistance, and continuity with automatic function recognition, eliminating manual selection errors. · NCV Non-Contact Voltage Detection: Safely detects live voltage without direct contact, while distinguishing between neutral and live wires to reduce the risk of electric shock. · Dual Measurement Modes: Automatically identifies DC voltage, AC voltage, resistance, and continuity, and also offers manual switching for electric field induction and live wire discrimination. · Clear VA Reverse Display: The color reverse LCD screen enhances readability under various lighting conditions and reduces glare, allowing for easy interpretation of readings. · High Reliability and Stability: Built with high precision and overload protection, this multimeter ensures consistent performance and durability in diverse environments. · Energy Efficient Design: Equipped with automatic shutdown after inactivity to conserve battery life, along with a low battery prompt, making it dependable for prolonged use. · Audible and Visual Alerts: Features both buzzer and light alarms for easier detection and confirmation of measurement results. · Compact and Ergonomic Pen Design: Lightweight and portable, perfect for one-handed operation, suitable for professionals, hobbyists, and general household use. · Versatile Applications: Ideal for use in home maintenance, schools, laboratories, factories, and other technical fields requiring reliable electrical measurements. Specifications: · Model Options: A3005A (Standard Configuration) / A3005B (High Configuration) · Material: Durable ABS Construction · Dimensions:  - A3005A: 170.5 x 25.4 mm (6.71 x 1 inch)  - A3005B: 183.5 x 29 x 24 mm (7.22 x 1.14 x 0.94 inch) · Weight:  - A3005A: 58g (2.04oz)  - A3005B: 60g (2.12oz) Measurement Ranges: - AC Voltage: 4V–600V (A3005A), 6V–600V (A3005B) - DC Voltage: 400mV–600V (A3005A), 600mV–600V (A3005B) - Resistance: 0Ω–40MΩ (A3005A), 600Ω–60MΩ (A3005B) - Capacitance: 10nF–40mF (A3005A), 10nF–60mF (A3005B) - Frequency: 10Hz–10MHz (Both Models) - Duty Cycle: N/A (A3005A), 0.1%–99.9% (A3005B) - Additional Functions: Diode check, ambient temperature, buzzer, line breakpoint detection, hold data retention, flashlight lighting, low battery prompt, automatic shutdown, live zero line identification, phase sequence detection (A3005B only) Note: Model A3005A does not include the phase sequence detection function. This pen-type digital multimeter combines advanced features with user-friendly design, providing a reliable, safe, and efficient tool for electrical testing and troubleshooting. Its automatic measurement identification and non-contact voltage detection offer exceptional safety and convenience, making it a must-have device for electrical enthusiasts and professionals alike.