1. **Accurate Voltage Testing**: The HT91A Wire Detector is designed for precise measurement of AC voltage, ensuring reliable performance for all your electrical testing needs. 2. **User-Friendly Design**: This pen-type voltage tester features a compact and lightweight design, making it easy to handle and for both professionals and DIY enthusiasts. 3. **Wire Continuity Detection**: With the HT91A, you can effortlessly perform wire continuity detection to identify breaks or faults in electrical circuits, enhancing safety during repairs. 4. **Battery-Powered Convenience**: Powered by batteries, this wire detector offers portability and ease of use, allowing you to conduct tests anytime, anywhere without being tethered to a power source. 5. **Chemical-Free Construction**: The HT91A Wire Detector is built with high-quality materials that contain no harmful chemicals, ensuring a safe testing experience for users and the environment.