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RTC100 - GSM Central Heating controller

Enjoy the benefits of being able to take control of your heating as and when you need it using your mobile phone.  Switch your heating on with a text message or FREE phone call.
  • Are you a shift worker?
  • Do you live alone?
  • Do you have a holiday or second home?
  • Are you fed up working late knowing you heating is on at home being wasted?
If you answer yes to any of the above then you need to take control. Imagine calling a phone number an hour before you get home or arrive to your holiday chalet, caravan or home and it is already nice and warm.

Ideal for:

  • Home & office
  • Heating or air-conditioning
  • Self-employed & shift workers
  • Caravans, chalets & second homes
  • Greenhouses, livestock & server farms


  • Up to 20 users
  • PAYG SIM card included
  • Compatible with all mobile networks
  • Configure the system using simple text messages
  • Inputs for alarm notification (burglar, fire, freezer, etc)
  • Mains fail notification (backup battery required)
  • Battery backup (battery not supplied)
  • Free extended warranty on registration
There is never a charge for the call as it is immediatly disconnected. The number that called then is matched to a list of known phone numbers and if a match is found, then the on board relay energises for as long as the defaults are set overriding your heating timer.

Save money on wasted gas and fuel by only having the heating on when you need it and by simply calling a number.
Never arrive home after a long day or shift to a cold house again, never have the heating on when you are not there just because the timer is set. Use our system to give you heat on demand, by making a simple phone call.
Easy to install, no contract required as Pay as you Go SIM cards can be used.



Don’t delay – take control:
  • No more arriving cold - arrive with the temperature just as you like it by making a FREE phone call on the way (the heating reverts to its previous state after a preset time).
  • Built in pipe protection (the system will activate the heating to prevent freezing & text you if the temperature continues to fall).
  • Works with your existing timer/thermostat or as a standalone controller.
  • SAVE money & reduce CO2 emissions.


  • 230VAC, 24VAC, 12VAC or 24VDC
  • 2.5A switching (5A available)
  • 4 monitored inputs (analogue, digital, tacho, etc)
  • Expansion port for control and/or monitoring of almost anything – please contact us for available modules

More Information?



Select SIM Card Network

 Every unit is supplied with a free SIM card to get you started.



Business hours (UK time)
Monday-Thursday: 09:00-17:00
Friday: 09:00 - 16:30
Saturdays: 11:00-13:00
Sundays: Closed
Answerphone operating outside these hours 
UK Local: 0161 354 5108
UK Local: 0161 660 2544
International: +44 161 354 5108

Trading as GSM Secure™