... -effective solutionApplying to community and goverment department1, Entrance Equipment:A), Automatic Barrier (straight arm)B), Vehicle sensor 1 and cableC), Equipments ... f: power g: transformer power (optional)2, Exit Equipment:A), Automatic Barrier (straight arm)B), Vehicle sensor 1 and cable 1 ... goverment department short range 3-15cm RFID economic car parking system for registerded parker only