NJTY T02A/T02B Non-Contact AC Voltage Tester & Breakpoint Finder
NJTY T02A/T02B Non-Contact AC Voltage Tester & Breakpoint Finder
NJTY T02A/T02B Non-Contact AC Voltage Tester & Breakpoint Finder
Take the guesswork out of electrical work with the NJTY T02A/T02B Voltage Detector Pen. This smart, non-contact AC voltage tester detects live wires and pinpoints breakpoints quickly and safely — no direct wire contact required. The T02B model adds a convenient English Voice Broadcast feature for hands-free, audible voltage status alerts, making it ideal for electricians, DIY enthusiasts, and homeowners alike.
Key Features
- Wide Voltage Range: Detects AC voltage from 12V to 1000V (50/60Hz), covering residential, commercial, and industrial applications.
- Non-Contact Detection: Safely identify live wires without touching terminals — simply hold the pen near the wire or outlet.
- Smart Breakpoint Finder: Quickly locate wire breaks, faults, or interruptions within insulated cables, saving time on troubleshooting.
- Voice Broadcast (T02B): English voice announcements provide instant, audible confirmation of voltage presence — great for low-light or confined spaces.
- Visual & Audible Alerts: LED indicator light and buzzer deliver clear dual-mode feedback when voltage is detected.
- CE & RoHS Certified: Meets international safety and environmental compliance standards.
- Compact Pen Design: Ergonomic, pocket-sized form factor for easy one-handed use and on-the-go portability.
- Battery Powered: Runs on 2 × AAA batteries (not included) for reliable, portable operation.
Specifications
| Model | T02A / T02B |
| AC Voltage Range | 12V – 1000V AC (50/60Hz) |
| Detection Method | Non-Contact |
| Display Type | Analog / LED Indicator |
| Voice Broadcast | English (T02B only) |
| Power Supply | 2 × AAA Batteries (not included) |
| Operating Temperature | 0°C – 40°C (32°F – 104°F) |
| Certification | CE, RoHS |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × NJTY T02A or T02B Voltage Detector Pen
- Note: AAA batteries are NOT included
Safety Resource
For electrical safety best practices and guidelines, visit the OSHA Electrical Safety page — an authoritative resource for safe electrical work practices at home and in the workplace.
Frequently Asked Questions
Q: What is the difference between the NJTY T02A and T02B voltage tester?
A: Both models detect AC voltage from 12V to 1000V via non-contact sensing and feature the smart breakpoint finder. The key difference is that the T02B includes an English Voice Broadcast function that audibly announces voltage status, while the T02A relies solely on LED and buzzer alerts.
Q: Do I need to touch the wire to detect voltage with this tester?
A: No — the NJTY T02A/T02B uses non-contact AC voltage detection. Simply hold the tip of the pen near a wire, outlet, or cable (no stripping or direct contact needed) and the device will indicate whether voltage is present via LED light, buzzer, and/or voice alert (T02B).
Q: Can this voltage tester find wire breaks inside insulated cables?
A: Yes. The smart breakpoint finder function allows the tester to detect discontinuities or breaks within insulated wiring, helping you quickly locate faults without cutting or exposing the cable.
Q: What batteries does the NJTY voltage detector use?
A: The tester is powered by 2 × AAA batteries, which are not included in the package. Standard AAA alkaline batteries are recommended for optimal performance.
Q: Is this voltage tester safe and certified?
A: Yes. The NJTY T02A/T02B is CE and RoHS certified, meeting European safety and environmental standards, making it a compliant and reliable tool for both professional and DIY electrical tasks.