CDVI BTAG25 125 kHz Blue Proximity Key Fobs Pack of 25

The CDVI BTAG25 is a 25-pack of blue 125 kHz RFID proximity key tags designed for electronic access control systems using CDVI 26-bit credential encoding. Each PVC key fob features a passive RFID chip, printed sequential decimal identification number, and metal keyring for convenient credential management. Measuring approximately 1.25 inches (32 mm) in diameter, the tags provide contactless identification for compatible proximity readers in commercial, residential, and institutional access control installations.

CDVI BTAG25 Blue 125 kHz Proximity Key Tags, 26-Bit, 25-Pack

The CDVI BTAG25 blue proximity key tags provide contactless RFID credentials for electronic access control systems operating with CDVI-compatible 125 kHz readers. Supplied in a package of 25 key fobs, these credentials use CDVI 26-bit encoding to identify authorized users when presented to a compatible proximity reader. Each tag contains a passive RFID chip that communicates its programmed credential information through the reader's electromagnetic field, eliminating the need for an internal battery. The compact blue housing includes a metal keyring for attachment to keys, lanyards, or identification accessories. Designed for standard access control applications, the BTAG25 supports credential-based entry management at offices, apartment buildings, commercial entrances, and secured facilities.

The BTAG25 operates at a 125 kHz RFID frequency with CDVI 26-bit credential encoding. Each credential features a sequential decimal identification number printed on its exterior, allowing administrators to identify and associate individual tags with authorized users during enrollment. The blue enclosure is manufactured from polyvinyl chloride (PVC) and measures approximately 1.25 inches (32 mm) in diameter, with a manufacturer-specified weight of 0.2 ounces (8 grams). The embedded RFID technology provides contactless operation without batteries, charging, or wired connections. CDVI identifies the BTAG25 as a standard-security proximity credential and lists CE and RoHS compliance in its product documentation. The manufacturer also provides a 5-year product warranty, subject to its published warranty conditions.

The CDVI BTAG25 26-bit proximity key fob is designed for enrollment in compatible access control systems using CDVI 125 kHz credential encoding. Users present the tag to a supported proximity reader, which reads the credential identifier and forwards the information to the connected access control system for authorization. Compatible CDVI reader families include designated NANOPB, STARPB, SOLARPB, and SOLARKPB proximity readers, subject to their supported frequency and credential formats. The printed decimal identification number simplifies credential assignment, replacement, and recordkeeping without requiring a separate card printer. The metal keyring allows personnel to carry the credential alongside everyday keys, making the BTAG25 suitable for employee access, tenant entry, and visitor credential management.

The CDVI BTAG25 25-pack provides a standardized credential format for facilities issuing multiple RFID access tags. Its 125 kHz CDVI 26-bit encoding distinguishes it from the CDVI BTAGH25, which uses HID-compatible 125 kHz technology, and the CDVI BTAGM25, which uses MIFARE Classic 1K technology at 13.56 MHz. These credential formats are not automatically interchangeable, even when readers operate at the same frequency. System administrators must confirm reader compatibility and enroll each tag before use. CDVI also offers customized branding with company logos for qualifying orders of 1,000 units or more. With 25 individually identifiable credentials per package, the BTAG25 supports organized access credential distribution for compatible commercial and residential security systems.