{"product_id":"doorbird-125-khz-transponder-key-fob-qty-10","title":"DoorBird 125 KHz Transponder Key Fob - Qty 10","description":"\u003ch2\u003e125 KHz RFID Key Fob Set for DoorBird IP Access Devices\u003c\/h2\u003e\n\u003cp\u003eThe DoorBird 125 KHz Transponder Key Fob Set (P\/N 423860605) provides secure and convenient RFID access control for DoorBird A1121 IP Access Control Devices and D21x IP Video Door Stations. Each fob is equipped with a write-protected TK4100 chip operating at 125 KHz and housed in a durable waterproof ABS shell. Designed for long-term reliability, these key fobs offer dependable identification for residential, commercial, and multi-tenant installations.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSystem Compatibility: For DoorBird A1121 and D21x IP Video Door Stations\u003c\/li\u003e\n\u003cli\u003eChip Type: TK4100, 64-bit read-only, write-protected\u003c\/li\u003e\n\u003cli\u003eOperating Frequency: 125 KHz (LF RFID)\u003c\/li\u003e\n\u003cli\u003eMaterial: ABS plastic, waterproof (IP67) in grey finish\u003c\/li\u003e\n\u003cli\u003ePack Quantity: 10 fobs per set\u003c\/li\u003e\n\u003cli\u003eSecure Access: Read-only design prevents unauthorized duplication\u003c\/li\u003e\n\u003cli\u003eCompact Form Factor: Lightweight and comfortable for key rings\u003c\/li\u003e\n\u003cli\u003eWeather-Resistant: Suitable for indoor or outdoor installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e TK4100 (EM4100 compatible)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory:\u003c\/strong\u003e 64-bit read-only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 125 KHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Distance:\u003c\/strong\u003e 1 – 10 cm (0.4 – 3.9 in), depending on reader and antenna\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEncoding:\u003c\/strong\u003e Write-protected \/ read-only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Retention:\u003c\/strong\u003e \u0026gt; 10 years\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS plastic, waterproof, grey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 39.9 × 30.9 × 5.3 mm (1.6 × 1.2 × 0.2 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e –25 °C to +55 °C (–13 °F to +131 °F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 pieces per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eThe DoorBird 125 KHz Transponder Key Fob Set is a durable, secure, and maintenance-free solution for expanding DoorBird access control systems. With its TK4100 chip, waterproof ABS design, and long data retention, this set provides dependable performance for everyday use in multi-tenant and commercial environments.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0141\/9617\/8998\/files\/125_KHz_Transponder_Key_Fob_specs.pdf\" class=\"elite-button\" target=\"_blank\"\u003eCut Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"DoorBird","offers":[{"title":"Default Title","offer_id":45611162403124,"sku":"DOORBIRD-125-FOB","price":168.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0141\/9617\/8998\/files\/DoorBird125KHzTransponderKeyFob.jpg?v=1753910790","url":"https:\/\/theelitegateoffers.com\/products\/doorbird-125-khz-transponder-key-fob-qty-10","provider":"Elite Gates","version":"1.0","type":"link"}