1. Introduction
The ANENG B18 Highlight Voltage Test Pen is a multi-functional electrician's tool designed for safe and efficient electrical testing. It combines the utility of a voltage tester with a word/cross screwdriver, offering features such as Non-Contact Voltage (NCV) induction, live/neutral line recognition, and on-off circuit measurement. This instrument is designed and produced according to the safety requirements of the international electrical safety standard IEC-61010 for electronic measuring instruments and handheld digital multimeters, meeting 600V CAT IV and 1000V CAT III and Pollution Level 2 Requirements.
Before using this instrument, please read this user manual carefully and pay attention to all relevant safety guidelines to ensure safe operation.
2. Safety Information
- Always ensure the device is in good working condition before use.
- Do not attempt to measure voltages exceeding the specified limits (AC 450V).
- This product requires a certain degree of electrical knowledge. Pay attention to the use of certain operating procedures, select the correct measurement method, and avoid dangerous events.
- If the customer uses the product improperly and the use method is not equal, resulting in damage to the product, it will be judged as man-made damage.
- Keep the device away from moisture and extreme temperatures.
- Replace batteries promptly when the indicator shows low power.
3. Package Contents
Upon opening the package, please verify that all items listed below are present and in good condition:
- 1 x ANENG B18 Tester Pen
- 1 x Packing Box
- 1 x User Manual (this document)

4. Specifications
| Feature | Description |
|---|---|
| Brand Name | ANENG |
| Model Number | ANENG B18 Tester Pen |
| DIY Supplies | Electrical |
| Certification | CE |
| Origin | Mainland China |
| Power Source | Battery (1.5V AAA Battery x1) |
| Battery Included | No |
| Display Type | Analog Only (LED Indicator) |
| Voltage Range | AC 450V (Max) |
| Indicator Light Prompt | Red (High Voltage), Green (Low Voltage/Conduction), Blue (Induction) |
| Alarm Method | Indicator light on + beep alarm |
| On-Off Measurement | Yes |
| NCV Voltage Induction | Yes |
| Live/Neutral Line Recognition | Yes |
| Screwdriver Type | Phillips/Slotted |
| Handle | Insulated glued handle, anti-skid design |
| Weight | 58g |
| Dimensions | Approx. 19.2cm (7.56in) length, 2.4cm (0.945in) width, 3.3cm (1.3in) height (based on image S9379306d8f984f0cb6e58cfc6731bbd3W.jpg) |

5. Setup
5.1 Battery Installation
The ANENG B18 requires one 1.5V AAA battery (not included) for operation.
- Turn the test pen to the back side.
- Carefully open the battery compartment lid.
- Insert one 1.5V AAA battery, ensuring correct polarity (+/-).
- Close the battery compartment lid securely.
6. Operating Instructions
The ANENG B18 is designed for ease of use with its intuitive LED indicators and multi-functional capabilities.
6.1 General Operation and Lighting Prompts
To activate the testing functions, touch the touch button on the device. The transparent cover allows for clear visibility of the LED indicators.
- Blue Light (Induction): Indicates that a voltage is sensed (induced voltage).
- Green Light (Low Voltage/Conduction): Indicates low voltage or line conduction (continuity).
- Red Light (High Voltage): Flashing red light accompanied by a beep indicates high voltage.

6.2 NCV Voltage Induction
For non-contact voltage detection, hold the tester pen and touch the touch button with your finger. When an AC voltage is detected around the tip, the indicator light will turn blue.

6.3 Live/Neutral Line Recognition
To distinguish between live and neutral lines:
- Insert the test pen into a socket or touch a wire.
- If the indicator light is green and there is no beep, it recognizes the Neutral line.
- If the indicator light is red and accompanied by a beep, it recognizes the Live line.
During the test, you need to keep touching the touch button.

6.4 On-Off Measurement (Continuity Test)
The device can detect line continuity. When testing a wire or component:
- If the green indicator light is on, it indicates that the line is unobstructed (conducting).
- If there is no response (no light), it indicates no conduction, suggesting a broken circuit.
This function is useful for checking fuses or identifying broken wires.

6.5 Breakpoint Detection
To locate breakpoints in a live wire, use the NCV function. Move the tip of the test pen along the insulated wire. The bright blue light will indicate the presence of voltage. Where the blue light stops illuminating, that point is likely the breakpoint in the line.

6.6 Screwdriver Function
The ANENG B18 features a durable nib that functions as both a Phillips and Slotted screwdriver. It is suitable for various tasks, including tightening screws in electrical panels or other applications requiring high torque.

6.7 Multi-Scene Measurement
The ANENG B18 is versatile for various applications:
- Electrician Maintenance: Ideal for checking circuits and connections.
- Appliance Repair: Useful for diagnosing electrical issues in household appliances.
- Distribution Box Maintenance: Helps in identifying live/neutral lines and checking connections.
- Home Socket Detection: Quickly test the functionality of wall sockets.

6.8 Automatic Shutdown
The device features an automatic shutdown function. Simply leave it alone when you finish using it; there is no need for manual shutdown or other operations. This helps conserve battery life.
7. Maintenance
- Cleaning: Wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the test pen in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the AAA battery to prevent leakage.
- Battery Replacement: Replace the 1.5V AAA battery when the device's performance degrades or indicators become dim.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on/respond | Dead or incorrectly installed battery. | Check battery polarity and replace with a new 1.5V AAA battery. |
| Inconsistent NCV readings | Interference from other electrical fields; weak signal. | Ensure you are touching the touch button. Test in a less cluttered electrical environment. |
| No light/beep during continuity test on a known good wire | Broken wire or component; poor contact. | Ensure firm contact with the wire/component. If still no response, the wire/component may be faulty. |
| Difficulty screwing/unscrewing | Incorrect screwdriver type for the screw; stripped screw head. | Ensure you are using the correct tip (Phillips or Slotted) for the screw. Do not apply excessive force. |
If you encounter operational problems or do not understand how to use the product, please contact ANENG customer service for assistance.
9. User Tips
- For accurate Live/Neutral line detection, always ensure your finger is in contact with the touch button on the handle.
- The automatic shutdown feature is convenient; simply place the pen down after use, and it will power off to save battery.
- When using the screwdriver function, ensure the tip is fully engaged with the screw head to prevent stripping.
10. Warranty & Support
ANENG is committed to providing quality products and customer satisfaction. For any questions or issues regarding your ANENG B18 Highlight Voltage Test Pen, please contact ANENG customer service.
If you have any problems during the use of the product, please provide a detailed video of the product not operating normally to ANENG customer service, so that our experts and technicians can quickly find out the product problem and provide you with a solution.
For further information or support, you may also refer to the official user manual PDF: ANENG B18 User Manual (PDF).





