Fast delivery, pre-configured by the vendor alarm, therefore easy to install. Just indicate the telephone numbers to contact in case of tripping. The screws and brackets are provided. Possible settings are facilitated by the voice help. (Small) drawbacks: - Central to install near the box (remedy: use the GSM option) to the phone - In our case, we lacked peripheral pins 1 and 2 (the others were well identified). Easy to find by checking the parameters of these devices. - Also lacked (or we lost unpacking) doc solar siren In short no regrets.