ESMART ULTRA SYSTEM, which consists of Locks, Transmitters (Access Point device), and a Server/Client program, is a wireless On-line lock system integrated with wireless controlling and monitoring functions combined with ESMART Classic Off-Line Lock. ESMART ULTRA SYSTEM provides, in addition to the advantage of our Off-Line Lock system, the real-time monitoring of Lock occupancy and status (battery, unauthorized opening) and remote controlling functions while removing the complicated wiring installation hassle. Three different types of RFID Lock units can be selected for the System ZP100WR, ZP200WR and PT200, PT300. ZP100WR / ZP200WR / PT300 are the exclusive RFID lock units for ESMART ULTRA SYSTEM, where the Wireless Communication function is added to ESMART CLASSIC ZP100 / ZP200R / PT300KR Locks. PT200 is basically applied with on/offline function.