CR003 rfid reader module 125khz module Voltage: 4.5-5.5V Dimensions: 40*20*8mm Interface: Wiegand26/34,ABA,G3W,CMOS-TTL NAMECR003 series Proximity Reader ModuleWeight10gDimensions40*20*8(mm)Read Range8-12cmInterfaceTTL232, Weigand 26/34 , ABA2Temperature-20 +85CFrequency125KHzSUPPORT EM4001 Power RequirementDC4.6 - 5.4V EM4200 Reader module CR003