... protect and monitor house, supermarket, office, villa,factory, farm and so on. SpecificationsA.Support GSM network, no telephone line will be available ... it in arm/disarm mode by any remote phones. 2. Main functions 1. GSM alarm transmission, without connecting telephone lines and be ... , and set the host by wireless keyboard, SMS or any phones.8. You can increase/decrease detectors.9. Connect with the ...