GSM Wireless Remote Gate Opener

We are offering gsm wireless remote gate opener:
1.remote gate opener for door
2.automatic door gsm gate opener
3.gsm network free gate opener
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 to turn on/off your system, machines, equipments remotely with a free call from your mobile phone.
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 carrys out the turn on/off action.
what applications suitable for?
1.home and garage owners
2.business companies
3.hotels
4.warehouses
5.parking places
6.hospitals
7.other place need remote switching applications
8.simple security alarm systems applications.