The GSM Gate Opener RTU5015 is a very simple device which can be used for authorized door access, controlling gates, switching of remote equipments, car parking systems. Actually the GSM Gate Opener RTU5015 can be used in places which require turning ON/OFF your system, machines, equipments remotely with a FREE call from your mobile phone and protect your assets.Just dial from Authorized User number then the Barrier and doors are opened, or the machine are turn on or off by the GSM Gate Opener. There are no call costs, the GSM Gate Opener rejects the call from authorized number then carries out the turn ON/OFF action.