... direct connection of sensors, which lowers the cost of building system. Hence, it can directly work with humidity sensors, ... RS485 Communication protocol Modbus RTU&ASCII Expansion yes RTC yes LCD display with keypad Optional Alarming mode SMS,Ring ,email,voice ... on/ off-delays, pulse relay ,counters ,Watchdog function ,PI controller etc..Ø Logic functions-AND, OR, NOT, XOR……Ø Standard configure soft ...