1 Purchase, difficult to configure if you know anything about it. By cons I see have to leave the Always On computer so it works ... too bad though! And mail alerts do not work (test ok but not real). Just my smartphone with a pro app (TinyCam Monitor) works very well and adds options but the same, must be lit WiFi or 3G so bjr the conso ... I'm probably the wrong product to the end. I wanted an autonomous cam sends me alerts by email or text message when I'm absent. I want to spend my days reread my recordings.