{"product_id":"njty-t02a-t02b-non-contact-ac-voltage-tester-breakpoint-finder","title":"NJTY T02A\/T02B Non-Contact AC Voltage Tester \u0026 Breakpoint Finder","description":"\n\u003ch2\u003eNJTY T02A\/T02B Non-Contact AC Voltage Tester \u0026amp; Breakpoint Finder\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of electrical work with the \u003cstrong\u003eNJTY T02A\/T02B Voltage Detector Pen\u003c\/strong\u003e. 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 \u003cstrong\u003eEnglish Voice Broadcast\u003c\/strong\u003e feature for hands-free, audible voltage status alerts, making it ideal for electricians, DIY enthusiasts, and homeowners alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Detects AC voltage from 12V to 1000V (50\/60Hz), covering residential, commercial, and industrial applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNon-Contact Detection:\u003c\/strong\u003e Safely identify live wires without touching terminals — simply hold the pen near the wire or outlet.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart Breakpoint Finder:\u003c\/strong\u003e Quickly locate wire breaks, faults, or interruptions within insulated cables, saving time on troubleshooting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoice Broadcast (T02B):\u003c\/strong\u003e English voice announcements provide instant, audible confirmation of voltage presence — great for low-light or confined spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVisual \u0026amp; Audible Alerts:\u003c\/strong\u003e LED indicator light and buzzer deliver clear dual-mode feedback when voltage is detected.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE \u0026amp; RoHS Certified:\u003c\/strong\u003e Meets international safety and environmental compliance standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Pen Design:\u003c\/strong\u003e Ergonomic, pocket-sized form factor for easy one-handed use and on-the-go portability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Powered:\u003c\/strong\u003e Runs on 2 × AAA batteries (not included) for reliable, portable operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT02A \/ T02B\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V – 1000V AC (50\/60Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDetection Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-Contact\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDisplay Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnalog \/ LED Indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoice Broadcast\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEnglish (T02B only)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 × AAA Batteries (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C – 40°C (32°F – 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × NJTY T02A or T02B Voltage Detector Pen\u003c\/li\u003e\n  \u003cli\u003eNote: AAA batteries are NOT included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Resource\u003c\/h3\u003e\n\u003cp\u003eFor electrical safety best practices and guidelines, visit the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety page\u003c\/a\u003e — an authoritative resource for safe electrical work practices at home and in the workplace.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the NJTY T02A and T02B voltage tester?\u003c\/h4\u003e\n\u003cp\u003eA: 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 \u003cstrong\u003eT02B\u003c\/strong\u003e includes an \u003cstrong\u003eEnglish Voice Broadcast\u003c\/strong\u003e function that audibly announces voltage status, while the T02A relies solely on LED and buzzer alerts.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need to touch the wire to detect voltage with this tester?\u003c\/h4\u003e\n\u003cp\u003eA: No — the NJTY T02A\/T02B uses \u003cstrong\u003enon-contact AC voltage detection\u003c\/strong\u003e. 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).\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this voltage tester find wire breaks inside insulated cables?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The \u003cstrong\u003esmart breakpoint finder\u003c\/strong\u003e function allows the tester to detect discontinuities or breaks within insulated wiring, helping you quickly locate faults without cutting or exposing the cable.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What batteries does the NJTY voltage detector use?\u003c\/h4\u003e\n\u003cp\u003eA: The tester is powered by \u003cstrong\u003e2 × AAA batteries\u003c\/strong\u003e, which are \u003cstrong\u003enot included\u003c\/strong\u003e in the package. Standard AAA alkaline batteries are recommended for optimal performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this voltage tester safe and certified?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The NJTY T02A\/T02B is \u003cstrong\u003eCE and RoHS certified\u003c\/strong\u003e, meeting European safety and environmental standards, making it a compliant and reliable tool for both professional and DIY electrical tasks.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the NJTY T02A and T02B voltage tester?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both models detect AC voltage from 12V to 1000V via non-contact sensing and feature the smart breakpoint finder. 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