Remote control of heating in cars and ships

With your mobile phone you can remotely control the heating in your car or boat. There are several possibilities. Either you can send an SMS with the command to switch on, or to switch off or on for the desired time. It is also possible to connect an alarm contact to send a message or a temperature sensor that can inform about the current temperature or announce that a temperature has been reached.

There is also an application for Android phones.

A suitable device for this solution is GSM-R5-T.