The CRD-25SL function exactly as the CRD-25 do, with the exception that these are slotted and contain numbering on one side of the card.
Visonic Proximity Cards are EM 4100 compliant Radio Frequency (RF) disturbance devices. The cards are designed for use as electronic keys for doors protected by VisAccess Tag-In-A-Bag, AXS-10 and AXS-100/200 systems or other third-party Wiegand 26-bit access control solutions.
Made of tough polycarbonate material, Visonic Proximity Cards are strong, flexible and resistant to cracking and breaking. The cards are powered by the RF signal transmitted from the proximity reader. To open a door, the user simply holds the card in front of the wall-mounted proximity reader. Visonic Proximity Cards are unaffected by body shielding or other environmental conditions, even when close to keys and coins. A single card can be conveniently programmed to open any combination of doors on the system.
Because each Visonic Proximity Card is unique, it's virtually impossible to forge or duplicate a card, providing the assurance that no two cards or people will be misidentified. In-field programmability supports data updates on-the-fly so that if a card is lost or stolen, it can easily be deleted from the system.