Name: 24-250V NCV Voltage Tester Pen | Smart Screwdriver
Brand: ANENG
SKU: 21TS001894
Price: 79.0 TWD
Availability: InStock

Short Product Description

Ensure electrical safety with the 24-250V NCV Voltage Tester Pen. Featuring Non-Contact Voltage (NCV) technology, this smart tester detects live AC currents with sound and light alarms without ever touching bare wires. It doubles as a durable chrome vanadium flathead screwdriver, making it the ultimate 2-in-1 tool for finding line breakpoints and testing zero/live wires. Need urgent tools for a home repair? Sun Cheong Computer Co. Ltd.offers over 20 years of hardware expertise. Visit our Sham Shui Po physical store for instant pickup and expert electrical advice!

Key Features

NCV Non-Contact Detection: Safely identify live AC voltages (24-250V) through wire insulation with zero physical contact.
Sound & Light Alarms: Features a bright LED display and an audible buzzer that increases in frequency near high voltage.
Breakpoint Locator: Trace along cables to instantly find internal wire disconnections without cutting the jacket.
Zero/Live Wire Identification: Easily distinguish between neutral (zero) and live wires in wall sockets and switches.
2-in-1 Screwdriver Design: The probe is crafted from high-hardness Chrome Vanadium Steel, functioning as a durable flathead screwdriver.
Built-in LED Flashlight: Illuminates dark workspaces, electrical cabinets, and tight corners for safer operation.

Full Product Description

Smart & Safe Electrical Testing

Working with electricity doesn't have to be dangerous. The 24-250V Smart Voltage Tester Pen is designed to keep you safe while diagnosing electrical issues. Whether you are a professional electrician wiring a new office or a DIY homeowner fixing a broken wall socket, this multifunctional tool provides instant, accurate feedback. Its compact, pocket-sized design ensures you always have a reliable voltage detector and screwdriver on hand.

Non-Contact Voltage (NCV) Detection

Safety is the top priority. Equipped with advanced NCV (Non-Contact Voltage) technology, this pen allows you to detect live AC voltages simply by bringing the probe close to a wire, socket, or switch. The built-in sensor triggers a bright LED light and an audible alarm that increases in urgency as you get closer to the live source, completely eliminating the need for direct metallic contact.

Pinpoint Wire Breakpoints Instantly

Finding a broken wire inside a thick cable jacket used to be a guessing game. With the Line Breakpoint Search function, you can trace along the outside of a wire. The blue LED indicator will remain lit where the current flows smoothly and will instantly turn off at the exact location of the internal disconnection, saving you hours of troubleshooting.

💡 Pro Tip from Our Technicians

"To ensure the longevity of this voltage tester pen, strictly use 1.5V AAA Carbon Dry Batteries only! High-current alkaline batteries (like standard Duracell or Energizer) can overload and burn out the sensitive NCV circuit board inside. When testing for a breakpoint, make sure the wire is plugged into a live power source so the pen can detect the signal drop. Experiencing a sudden power outage at home and need tools immediately? Drop by our Sham Shui Po store! Our team at Sun Cheong Computer Co. Ltd. has 20 years of technical experience and can equip you with the right diagnostic tools."

Technical Specifications

Specification	Details
Voltage Detection Range	24V - 250V AC
Detection Technology	NCV (Non-Contact Voltage)
Alarm Method	Sound and Light Alarm (LED)
Probe Material	Chrome Vanadium Steel (Flathead Screwdriver)
Body Material	Durable ABS Plastic
Battery Requirement	2x 1.5V AAA Batteries (Carbon Dry Batteries ONLY)
Functions	Zero/Live Line Inspection, Breakpoint Search, Self-Check, DC Detection
Dimensions	160mm x 28mm x 27mm

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

How does the NCV non-contact voltage detection work?The NCV feature uses an inductive sensor built into the tip of the pen. When you bring the pen close to a live AC power source (like a wire or socket), it detects the electromagnetic field generated by the voltage. The pen will then alert you with a flashing red light and a beeping sound, allowing you to verify power without touching bare metal.
Why must I use carbon dry batteries instead of alkaline batteries?This smart tester pen uses highly sensitive, low-power electronic components. Standard alkaline batteries deliver a higher initial current which can overload and permanently damage the internal circuit board. Always use 1.5V AAA Carbon Dry batteries (often labeled as Heavy Duty or Zinc-Carbon) for safe and stable operation.
How do I find a broken wire using the breakpoint feature?First, ensure the cable is plugged into a live power source. Turn on the tester pen and slowly trace the tip along the outside of the wire's insulation. The blue LED will stay illuminated as long as it detects current. The exact spot where the LED turns off indicates where the internal copper wire is broken.

Target Users / Applications

Professional Electricians: Quickly identifying live circuits, checking switchboards, and distinguishing zero/live wires during installations.
DIY Homeowners: Safely diagnosing faulty wall sockets, broken extension cords, or blown fuses without risking electric shock.
Appliance Repair Technicians: Tracing internal wire breaks in washing machines, refrigerators, and PC power supplies.