1. Introduction
The Gaqqee Intelligent Induction Power Voltage Detector Pen is a versatile electrical testing tool designed for safety and convenience. It combines the functions of a voltage detector, circuit tester, and electrical screwdriver. Featuring high-brightness dual-color LED indicators and a smart chip, this tool offers reliable detection of live/neutral wires, electrical on-off status, and line break points. Its compact design with a humanized pen clip makes it easy to carry for various electrical maintenance tasks.
Figure 1: Gaqqee Intelligent Induction Power Voltage Detector Pen
2. Safety Information
Always exercise caution when working with electricity. This tool is designed to assist in electrical testing but should not replace professional judgment or standard safety practices. Ensure the tool is in good working condition before use. The pen features drop-resistant all-round insulation material to improve safety performance.
- Always wear appropriate personal protective equipment (PPE) when performing electrical work.
- Do not use the tool if it appears damaged or is not functioning correctly.
- Verify the tool's functionality on a known live circuit before testing unknown circuits.
- Keep out of reach of children.
Figure 2: Internal view of the Voltage Detector Pen
3. Setup
3.1. Battery Installation
The device requires 3 LR41 button batteries (built-in for delivery). To install or replace batteries:
- Turn off the top copper cap of the pen.
- Disassemble the internal parts and insert three LR41 button batteries.
- Put the parts back, touch the pen head and the pen cap, and perform a self-test before use to ensure proper functionality.
Figure 3: Battery Installation Steps
4. Operating Instructions
The voltage detector pen offers several testing functions:
4.1. Electrical On-Off Detection (Continuity Test)
To check the continuity of a wire or plug:
- Contact the touch pole of the pen to the wire or plug.
- If the inner core of the wire is intact, the LED green light will illuminate.
- If the light does not illuminate, it indicates that the wire core is disconnected or there is poor contact.
Figure 4: Electrical On-Off Detection
4.2. Live/Neutral Wire Discrimination (Zero Fire Wire Identification)
There are two methods to distinguish between live (fire) and neutral (zero) wires:
Method 1: Non-Contact Detection
- Insert the electric pen bit into a wall socket or touch it to an insulated wire.
- If the green light illuminates, it indicates a live (fire) wire.
- If no light illuminates, it indicates a neutral (zero) wire.
Figure 5: Live/Neutral Wire Discrimination (Non-Contact)
Method 2: Contact Detection (for B09 model, also applies to B12)
- Touch the metal touch electrode (copper cap) at the bottom of the electric pen with your hand.
- Insert the electric pen bit into the jack or touch the wire.
- For a zero line, the green light will be highlighted.
- For a firewire, both red and green lights will be highlighted.
Figure 6: Live/Neutral Wire Discrimination (Contact Method)
4.3. Line Break Point Judgment
To detect breaks in a wire:
- Detect along the length of the wire.
- If the LED green light illuminates, the line is unobstructed.
- If the light does not illuminate, it indicates a line disconnection point.
Figure 7: Line Break Point Judgment
4.4. Video Demonstration
Video 1: Demonstration of the Voltage Detector Pen's various functions, including live wire detection and line break testing.
5. Maintenance
- Keep the voltage detector pen clean and dry. Wipe with a soft, dry cloth.
- Avoid exposing the device to extreme temperatures or humidity.
- Replace batteries promptly when the indicator lights become dim or fail to illuminate.
- Store the tool in a safe place to prevent physical damage.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Indicator light does not illuminate during electrical on-off detection. | Wire core is disconnected or contact is poor. | Check the wire for breaks or ensure proper contact with the test pen. |
| Indicator lights are dim or do not respond. | Low battery power. | Replace the 3 LR41 button batteries. |
| Inconsistent or inaccurate readings. | Poor contact with the test point or external interference. | Ensure firm and direct contact with the test point. Re-test in a different location if possible. |
7. Specifications
| Feature | Specification (Model B12) | Specification (Model B09) |
|---|---|---|
| Product Name | LED Highlighter / Voltage Detector Pen | |
| LED Lamp Beads | High-brightness double-color lamp beads (Red/Green) | |
| Measuring Range | Voltage 24V~250V | Voltage 70~250V |
| Battery Model | 3*LR41 button batteries (built-in) | LR41*2 (built-in) |
| Bit Material | Chrome vanadium steel | Chrome vanadium steel bits / Drop-resistant insulation PS |
| Dimensions | 140.8 * 21.3 mm | 138 mm / 5.43 inch |
| Bit Diameter | 3.5 mm | 3 mm / 0.11 inch |
| Net Weight | 23.2 g | 21 grams |
| Certification | CE | |
| DIY Supplies | Electrical | |
| Power Supply | DC | |
| Display Type | Analog Only | |
Figure 8: Model B12 Functional Analysis and Specifications
Figure 9: Model B09 Specifications
8. User Tips
- Always test the pen on a known live circuit first to confirm it is working correctly before using it on an unknown circuit.
- The humanized pen clip allows for convenient carrying in a pocket, making it readily available for quick checks.
- For the most accurate readings, ensure the pen's tip makes firm and direct contact with the conductor being tested.
- The high-brightness LED bulbs are designed to be clearly visible even in sunlight, improving usability in various environments.
9. Warranty and Support
For any questions, technical support, or warranty inquiries, please contact the seller or manufacturer directly. A detailed user manual in PDF format is available for download: User Manual (PDF).
