Call me crazy...
Did you get in touch with the installer / maintainer of the security system & ask them to train you on how to use the alarm correctly ?
Maybe when they undertake the maintenance visit, update the kekoholder ect...
I googled "Sannce DVR"
I do love a website which neglects to provide any address of the co. or makes it very had to find....
tat purchased from ebay / amazon ?
bet it costs a lot more than 9448 ?
http://www.coopercsa.it/it/prodotti/componenti-sistemi-antifurto/contatti-avvolgibili/contatto-fune-avvolgibili-serie-471
Oddly,
The owner of a staffie & Lab / Rott cross wanted an alarm to protect the dogs while theyre at work, as they where worried of them being stolen as bait dogs...