Inquiry about RFID Reader Module NEW

We are looking for an RFID reader module for vehicle access control. Requirements: - Frequency: 125 kHz EM4100, or 13.56 MHz MIFARE, or dual-frequency - Integrated antenna - Reading distance: around 1-10 cm - Interface: RS-485 (cable between control board and reader up to 4 m) - Bus operation: Modbus multi-drop with configurable device address preferred; proprietary protocols acceptable with complete documentation - Onboard connector (no fixed cable) - Supply voltage: 12V preferred - Current consumption: below 300 mA per reader - Operating temperature: -20°C to 65°C - Form factor: bare PCB module without housing, for integration into our enclosure - Compliance: RoHS and CE Please provide a datasheet and, if available, the protocol documentation. A rough indication of unit price, available quantities, and lead time would also be appreciated.