Expansion kit consisting of 1 wall-mounted external unit for video entry systems, Bello series wide-angle high-resolution colour video camera (108°) with white LEDs for night-time lighting, water-resistant front panel (certified protection rating IP54), tested for corrosion in saline mist and in extreme sunlight with UV rays, durability of the call button tested with over 120k activations, operating temperature -31°F to 131°F, and 1 audio/video switching device art. 1405. Compatible with kits art. HFX-700B, HFX-700W and HFX-9500M.