{
  "url": "https://proudtek.com/products/rfid-cards/dual-frequency-rfid-card/",
  "sourceUrl": "https://proudtek.com/products/rfid-cards/dual-frequency-rfid-card/",
  "title": "Dual-Frequency RFID Cards — LF + HF / HF + UHF",
  "description": "A dual-frequency RFID card embeds two electrically independent RFID inlays — tuned to different bands. Inside one ISO/IEC 7810 ID-1 card body. The...",
  "kind": "product",
  "imageUrl": "https://proudtek.com/landing-images/dual-frequency-rfid-card-hero.jpg",
  "imageAlt": "Hand holding a plain white RFID card up to a black wall-mounted reader",
  "imageGallery": [
    {
      "url": "https://proudtek.com/landing-images/dual-frequency-rfid-card-hero.jpg",
      "alt": "Hand holding a plain white RFID card up to a black wall-mounted reader"
    }
  ],
  "breadcrumbs": [
    {
      "name": "Home",
      "url": "https://proudtek.com/"
    },
    {
      "name": "Products",
      "url": "https://proudtek.com/products/all/"
    },
    {
      "name": "Dual-Frequency RFID Cards — LF + HF / HF + UHF",
      "url": "https://proudtek.com/products/rfid-cards/dual-frequency-rfid-card/"
    }
  ],
  "summary": [],
  "faq": [
    {
      "question": "Can both chips be read simultaneously?",
      "answer": "No — each chip only responds to its own frequency. When the card is presented to a 125 kHz reader, only the LF chip responds; at a 13.56 MHz reader only the HF chip responds; at a UHF reader only the UHF inlay responds. The rails operate independently and do not interfere — that is the point of frequency isolation."
    },
    {
      "question": "Is the card thicker than a standard RFID card?",
      "answer": "Slightly. Single-chip cards are 0.76 mm; dual-frequency cards are 0.84 mm due to the additional antenna layer. The 0.08 mm difference sits inside ISO/IEC 7810 tolerance and is imperceptible in normal handling. The card fits every standard holder, lanyard, wallet, and card printer without modification."
    },
    {
      "question": "How do I link the two chip IDs in my access-control system?",
      "answer": "Every Proud Tek dual-frequency order ships with a CSV mapping file listing LF UID, HF UID, and UHF EPC (where applicable) for every card. Import the CSV into HID ProWatch, Lenel OnGuard / Mercury, Genetec Security Center, Software House C•CURE 9000, Honeywell Pro-Watch, or Gallagher Command Centre to associate both credentials with the same cardholder. The system then recognises the user from either rail — whether they tap at an LF door, an HF turnstile, or drive through a UHF portal."
    },
    {
      "question": "Can dual-frequency cards be printed on a standard ID card printer?",
      "answer": "Yes. The card conforms to ISO/IEC 7810 ID-1 and works with every standard direct-to-card and retransfer printer — Evolis, Magicard, HID Fargo, Zebra, Entrust. The inlays are positioned to avoid the print-head contact zone, so full-colour photo ID printing and lamination proceed normally. The 0.84 mm thickness requires the printer card-feeder to be set to its thick-card setting but otherwise is transparent to the operator."
    },
    {
      "question": "What is the minimum order quantity and lead time?",
      "answer": "MOQ 500 cards for custom-printed dual-frequency with your choice of chip pairing, artwork, and encoding. Lead time is 12-18 business days from artwork approval. Sample packs of 50 cards with standard pairings (e.g. EM4100 + MIFARE Classic 1K) in plain white are available for prototyping and pilot deployments before committing to production quantities."
    }
  ],
  "procurementFields": [
    {
      "label": "Best fit",
      "value": "Dual-Frequency RFID Cards — LF + HF / HF + UHF is suitable for RFID or NFC identification, access, and OEM customization projects."
    },
    {
      "label": "Key options",
      "value": "Form Factor: Card format compatible with common access-control, ID, or NFC workflows."
    },
    {
      "label": "Customization",
      "value": "Confirm artwork, encoding, material, chip, and finish requirements before quoting."
    },
    {
      "label": "Quote checklist",
      "value": "Reference Dual-Frequency RFID Cards — LF + HF / HF + UHF in your inquiry so the matching product page stays attached to the quote. Card format compatible with common access-control, ID, or NFC workflows. Share target chip or protocol,..."
    }
  ],
  "collectionGuidanceFields": [],
  "coreGuidanceFields": [],
  "articleGuidanceFields": [],
  "sourceLinks": [],
  "related": [],
  "productSpecs": [
    {
      "name": "Form Factor",
      "value": "Card format compatible with common access-control, ID, or NFC workflows."
    }
  ],
  "machineJsonUrl": "https://proudtek.com/machine/products/rfid-cards/dual-frequency-rfid-card.json",
  "machineTextUrl": "https://proudtek.com/machine/products/rfid-cards/dual-frequency-rfid-card.txt",
  "author": {
    "name": "Proud Tek Co., Limited"
  },
  "publisher": "Proud Tek Co., Limited",
  "credentials": [
    "ISO 9001:2015",
    "ISO 14001:2015",
    "RoHS Compliant",
    "CE Marking",
    "REACH Compliant"
  ],
  "generatedAt": "2026-03-16T01:42:30.697Z"
}