The Radata Systems STD32 and STD35 are great devices for remotely monitoring and controlling a host of things from radio sites to tack sheds, batches, boats and caravans, farm buildings, industrial plant, farm machinery, irrigation equipment, heating and cooling systems, pumps, gates, entry systems, the list just goes on an on.  Using the GSM cellular system our STD controllers allow you to control and monitor in close to real-time with simple SMS messages or email.  Radata Systems developed the STD Controller iPhone App to make controlling things a breeze.