{"product_id":"12v-wired-doorbell-4-core-wire-access-control-home-hotel","title":"12V Wired Doorbell 4-Core Wire | Home \u0026 Hotel Door Chime","description":"\n\u003ch2\u003eAsia-Teco 12V Wired Doorbell – Clear, Reliable Ding-Dong Alert for Home \u0026amp; Hotel\u003c\/h2\u003e\n\u003cp\u003eUpgrade your entryway with the \u003cstrong\u003eAsia-Teco 12V Wired Doorbell\u003c\/strong\u003e — a compact, no-fuss door chime designed for homes, hotels, offices, and any space that needs a dependable wired alert system. Powered directly by a 12V DC supply, this doorbell never needs batteries, so you can count on it day after day without interruption.\u003c\/p\u003e\n\n\u003cp\u003eWith its crisp \u003cstrong\u003eding-dong ringtone\u003c\/strong\u003e, sturdy ABS plastic housing, and neat white-and-silver finish, it blends seamlessly into any interior or exterior wall. Installation is straightforward — simply wall-mount with screws or use double-sided adhesive tape. Compatible with 4-core wire access control systems, making it an ideal addition to a broader entry security or intercom setup.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e🔔 \u003cstrong\u003eNo Batteries Needed\u003c\/strong\u003e — Runs on 12V DC for continuous, long-lasting operation\u003c\/li\u003e\n  \u003cli\u003e🔊 \u003cstrong\u003eClear Ding-Dong Tone\u003c\/strong\u003e — Loud, distinct chime audible across rooms\u003c\/li\u003e\n  \u003cli\u003e🏠 \u003cstrong\u003eVersatile Use\u003c\/strong\u003e — Ideal for homes, hotels, offices, and apartment entrances\u003c\/li\u003e\n  \u003cli\u003e🔧 \u003cstrong\u003eEasy Installation\u003c\/strong\u003e — Wall-mount with screws or double-sided adhesive tape\u003c\/li\u003e\n  \u003cli\u003e🌡️ \u003cstrong\u003eWide Operating Range\u003c\/strong\u003e — Works in temperatures from -10°C to 45°C\u003c\/li\u003e\n  \u003cli\u003e🛡️ \u003cstrong\u003eDurable ABS Plastic\u003c\/strong\u003e — Anti-oxidation, anti-discoloration material for lasting looks\u003c\/li\u003e\n  \u003cli\u003e🔌 \u003cstrong\u003e4-Core Wire Compatible\u003c\/strong\u003e — Integrates with standard access control wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsia-Teco\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB12-B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-10°C to 45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40% RH – 90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite with silver spray accent\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS plastic (anti-oxidation)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85 × 85 × 24 mm (3.39 × 3.39 × 0.98 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWall-mount screws or double-sided adhesive\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Core\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 12V Wired Doorbell (Asia-Teco B12-B)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003ePlease allow a 1–3 cm variance due to manual measurement. Colors may vary slightly depending on your screen's display settings and lighting conditions.\u003c\/p\u003e\n\n\u003cp\u003eFor guidance on home electrical safety when installing wired doorbells and low-voltage devices, visit the U.S. Consumer Product Safety Commission (CPSC) Home Safety Resource.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What power supply does this 12V wired doorbell require?\u003c\/h4\u003e\n\u003cp\u003eA: This doorbell operates on a 12V DC power supply with a working current of just 20 mA. It is designed to connect to an existing 12V DC access control system or a compatible transformer — no batteries are required, ensuring uninterrupted operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this wired doorbell with my existing access control system?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The Asia-Teco B12-B is specifically designed to work with 4-core wire access control systems, making it compatible with most standard wired entry setups used in homes, hotels, and office buildings.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I install this doorbell?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is simple and flexible. You can either wall-mount the unit using screws for a secure, permanent fix, or attach it using double-sided adhesive tape for a tool-free setup. The compact 85 × 85 × 24 mm profile fits neatly on any wall surface.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this doorbell suitable for outdoor or external door use?\u003c\/h4\u003e\n\u003cp\u003eA: The doorbell is designed for external door use and can operate in ambient temperatures ranging from -10°C to 45°C with humidity tolerance up to 90% RH. While it handles typical external-door environments well, we recommend a sheltered installation location to maximize longevity.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What power supply does this 12V wired doorbell require?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This doorbell operates on a 12V DC power supply with a working current of just 20 mA. It is designed to connect to an existing 12V DC access control system or a compatible transformer — no batteries are required, ensuring uninterrupted operation.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this wired doorbell with my existing access control system?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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