Uart 125khz Em4100 Rfid Card Key Id Reader Module Rdm6300 For Arduino. FEATURES: 125KHz Cardreader Mini-module is Designed for Reading Code from 125KHz Card Compatible Read-only Tags and Read Card . It Can Be Applied in Office/home Security, Personal Identification, Access Control, Anti-forgery, Interactive Toy and Production Control Systems Etc. RFID Reader Module Access Control System for Arduino UART Output SPECIFICATIONS: Colour: Green Material: PCB Size: 38.5x19x9mm Package Contents: 1 * ID Reader Module. We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.