**Advantages**:
1. Dual sensitivity: Offers detection for both low and high voltage.
2. Non-contact detection: Reduces the risk of electrical shock.
3. Integrated torch: Assists in dimly lit areas or during power outages.
4. Compact and portable: Easily fits in tool bags and pockets.
5. Broad voltage range: Suitable for various electrical applications.
Disadvantages:
Non-contact detection may not always be precise in high-interference areas.
Requires batteries: Might need frequent replacement depending on usage.
Possible false positives/negatives in certain conditions.
Problems and Solutions:
Problem: False readings in areas with strong electromagnetic fields.
Solution: Ensure the device is calibrated and used away from other electronic devices.
Problem: Difficulty in detecting voltage through thicker insulating materials.
Solution: Ensure the material is thin enough or check the circuitry directly if possible.
Problem: Torch might not provide adequate light in extremely dark conditions.
Solution: Use an additional light source if necessary.
Note: Always consult the user manual and professional advice when dealing with electrical devices and circuitry.
