... Memory, Records never loseMax Distance from Reader to Controller100m (suggestion distance 80m)Max Distance between ControllersRS232 ... coverage areaCollocationsPCB board, case, power, power line, serial port communication line, software, manual, certificate, key(2pcs), ... capacityWizard guide, very easy to install and useVisual identificationTHe Software GUI Interface: Ethernet FOUR Door Access control ...