... direct connection of sensors, which lowers the cost of building system. Hence, it can directly work with humidity sensors, ... -delays, pulse relay ,counters ,Watchdog function ,PI controller etc..Ø Logic functions-AND, OR, NOT, XOR……Ø Standard configure soft& Customized ... RS232, 1USB&1RS485 ports availableØ Optional Ethernet InterfaceØ Optional speaker built-inØ 1 Socket of telephone crystal plug & 1 ...