Akuvox C310S 4-Inch Hands-Free Indoor Monitor

The Akuvox C310S is the smallest video monitor in Akuvox's range and the lowest-cost way to see the door from inside a flat. Its 4-inch colour screen shows the visitor when the bell rings, and the call is hands-free through the built-in speaker and microphone, so there is no handset to pick up. The panel measures only 155.9 × 135.1 × 19 mm.

It is run from touch keys under the screen rather than a touchscreen: a dial key for calls and menus and an unlock key that opens the door. Besides answering the door phone you can call other monitors, look at the door camera or an IP camera at any time, and receive notices sent by the building management.

One network cable with 802.3af PoE powers it, or a 12V DC 1A adapter. It speaks SIP, so it works with Akuvox door phones, other SIP door stations and SIP PBXs, with G.722 wideband audio and H.264 video.

It hangs on a wall bracket over a round back box or straight on the wall, with the bottom of the panel about 1.06 m from the floor. Akuvox asks for it to be kept out of direct sun and away from windows. In the box: the monitor, a 4-pin cable, the bracket, wall anchors and screws. The C310A is the same family with a corded handset for private calls.