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Does anybody know this product?

http://www.mrz-engineering.com/gsmalarm.html

I am looking for a simple solution for a friend who wants to be able to remotely enable/disable a few things in his chalet like the central heating and maybe some other thing like lights, but he doesn't have an internet connection in his chalet.
I know Conrad has a GSM module as well, but this one looks better. Don't know a price yet.

Are there other solutions for this as well?

Look at these:

http://www.futurashop.it/pdf_eng/8100-STD32.pdf
(218 euro in Italy)

http://www.futuraelettronica.net/pdf_ita/8100-TDG40.pdf
(198 euro)

http://www.futuraelettronica.net/pdf_ita/8100-TDG36.pdf
(219 euro)

http://www.futurashop.it/allegato/8220- ... =CONTROLLI REMOTI GSM&L1=MODULI GSM E SISTEMI GPS&L3=&cd=8220%2DCU2200&nVt=&d=325,00
(325 euro)
ciao !