21 May 2025
Discover the ATRIUM system and software along with best practices and top tips for installation.
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CDVI’s slim KRYPTO K4 Bluetooth card reader/ keypad makes high security easy! The reader is compatible with MIFARE® DESFire® EV2 credentials. Factory-programmed, industry-unique secure CDVI protocol and encryption keys ensure end-to-end encryption between the card, reader/keypad, and A22K door controller.
The K4 is also compatible with Mobile-PASS smartphone credentials.
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