... among “cost control” “function suitability” and “stability”. In line with the product philosophy of “Live Safely and Conveniently”, ... Function: offline operation; real time supervision; photo display; mass storage; flexible userprivilege setup; remote unlocking; multi-user ... area Collocations PCB board, case, power, power line, serial port communication line, software, manual, certificate, key(2pcs), ...