Proximity reader for MIFARE® DESFIRE® ISO14443A (13.56 MHz) cards with read / write capability, allowing access with various technologies. This reader allows you to read both the CSN (Chip Serial Number) of the card and read-write data in its memory. Access to such data can be through a cryptographic key for a more secure transaction of information (Access Grade 4). It can include a 12-key keypad that allows double factor identification with card and code and / or BLE sensor. Its format allows its installation on a universal electrical mechanism box and is suitable for both indoor and outdoor.