Operating conditions: -25°c to 50°c, weather resistant,mounting base | dimensions: integrated mounting base with adjustable light and camera angles. mounts directly on the wall | 28 x 21 x 17.8 cm lets you see, hear and speak to visitors from your phone, tablet and pc lets you see, hear and speak to visitors from your phone, tablet and pc requires hardwired installation to mains electricity monitors your home in 1080p hd video with infrared night vision and live view, real-time video includes built-in ultra-bright floodlights and a siren