Description The dedicated module RDM630 series of non contact RF ID card preclude the use of advanced RF receiver circuits and embedded microcontroller designCombined with efficient decoding algorithms to complete the EM4100 compatible ID card data receptionThis module is convenient to use the power supply serial connection after motherboard when RFID card to enter the card read range module will be through the UART the card number directly sendReceiver sensitivity high operating current high stabilitySuitable for access control time and attendance charges anti theft Patrol and other radio frequency identification applicationsSpecification Frequency 125KHzInterface TTL RS232Voltage DC 5V 5 Current 50mAWorking Temperature 10C 70CStorage Temperature 20C 80CMax Humidity 0 95 Working Size about 46 x 32 x 3mmModule Size about 38 5 x 19 x 9mmPackage included 3 x 125KHz RFID card read module3 x Cable