{"product_id":"125-khz-rfid-keyfob","title":"125 KHZ RFID Keyfob","description":"\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cstrong\u003e125kHz RFID Keyfob \u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003eThese keyfobs utilize Inductive Coupling to power themselves. When you bring the fob within range of a 125kHz reader, the reader's antenna coil induces a small electrical current into the fob's internal coil, allowing it to \"broadcast\" its ID number.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eWhy it’s an Access Control Essential:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• Rugged and Waterproof: Encased in a durable, sonic-welded PVC shell, these fobs are designed to survive on a keychain for years. They are resistant to water, dirt, and drop impacts.\u003cbr\u003e• Instant Authentication: Because the data format is simple (Manchester encoding at 2kbps), the reader can identify the tag almost instantly, providing a seamless \"tap-and-go\" experience for users.\u003cbr\u003e• Maintenance-Free: As a passive device, there is no battery to change. The fob will theoretically work forever unless the internal copper coil is physically snapped or the chip is crushed.\u003cbr\u003e• Pre-Programmed Security: Since these are \"Read-Only\" (EM4100 style), the ID cannot be changed by software. This prevents accidental overwriting of the tag’s identity.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eTechnical Capabilities:\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e• Operating Frequency: 125 kHz.\u003cbr\u003e• Chipset: EM4100 \/ EM4102 (or compatible).\u003cbr\u003e• Memory: 64-bit (includes header, unique ID, and parity bits for error checking).\u003cbr\u003e• Modulation: ASK (Amplitude Shift Keying).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003e:\u003c\/strong\u003e\u003cbr\u003eThese fobs are the primary choice for apartment building intercoms, office attendance systems, gym membership check-ins, and gated parking access.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"TinkEdge","offers":[{"title":"Default Title","offer_id":46405514068167,"sku":"TE-RFIDR-111","price":38.52,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6620\/6407\/files\/125RFIDKeyfob_1.png?v=1776443745","url":"https:\/\/shop.tinkedge.tech\/products\/125-khz-rfid-keyfob","provider":"TinkEdge","version":"1.0","type":"link"}