The package contains an instruction manual succinct, three main modules, along with the wiring, batteries, screws and stickers required for installation. This is done very quickly, without any particular difficulty. Next is the software part: it is to register with the Gigaset Elements site. It's a little 'clumsy' and he can not use a password easy to remember (I have not understood the value of such caution, but ...) The software on smartphone (and / or PC) Remote control the proper functioning of the system and warns if the door is opened or motion detection. The idea, on paper, is excellent and the technique seems very developed. BUT, there are large defects, depending largely on what is expected of such devices. According to the places monitored, it may be necessary to purchase one or more additional modules, for example, to monitor a garage or garden shed (and see if the signal range permitting). Each module costs around fifty Euros, and your budget is likely to increase significantly. The biggest problem is how we are warned in case of intrusion: a simple 'pop-up' (doubled of an email) on the mobile phone. Unless continuously monitor the screen of your smartphone, the house has plenty of time to be burglarized. Of course, one can associate an alarm (over 50 euros), but to monitor a second home, it is not necessarily effective. We should at least add a software part that makes the smartphone ring and immediately attracts attention in case of intrusion. The ideal combo would be warned for example by a robotic call (which we associate a particular ring) and act accordingly. Note that I contacted the Gigaset Elements for different services developed. No complaints concerning the care and timeliness of responses.