and High Quality. The dedicated module series of non-contact RF ID card, preclude the use of advanced RF receiver circuits and embedded microcontroller design. Combined with efficient decoding algorithms, to complete the EM4100 compatible ID card data reception and mf card IC This module is convenient to use, the power supply serial connection after for motherboard. Receiver sensitivity, high operating current, high stability. Suitable for access control, time and attendance, charges, anti-theft, Patrol and other radio frequency identification applications. Frequency:125KHz +13.56Mhz rfid Current: Less than 50mA Working temperature: -10℃-+70℃ Storage temperature: -20℃-+80℃ Max Humidity: 0-95% Interface:TTL/Wiegand output Specifications:A:DC5V Wiegand Verison/B:DC3.3V TTL Verison Color:As Shown Material:PC Package Contents: 1 * NFC RFID Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.