Image / video properties:, Camera: 1.0 megapixel CMOS sensor, diagonal detection angle: 150 degrees (wide angle), focal length: 2.5 mm, digital image correction: yes, electronics Auto Iris Control, day-night switching: yes, video outdoor station, number of bell buttons: 3, mounting type: surface-mounted, housing type: surface-mounted housing, housing material: aluminum, hand-finished, housing color: anodized bronze, bell button material: metal with maintenance-free contacts, shatter-proof nameplate glass, energy-saving LED nameplate lighting, opening principle: nameplates removed from below, voice output volume: adjustable, acknowledgement tone volume: adjustable, extended properties:, light switch function: on unprogrammed bell button, speaking when door is ready: can be activated, door opening function extension: on R terminal, nameplate lighting: white backlit,, control via twilight sensor, status display: errors / operating modes, error display: optical / acoustic, number of wires: 6-wire required, installation mix audio, video, access in one system: possible, commissioning and configuration: manual, with service device, with configuration software, system configuration memory: interchangeable plugged in, technical data:, technology: 2-wire TCS:BUS, current consumption, idle: 103 mA, current consumption, maximum: 120 mA, surface-mounted housing HxWxD mm: 330x150x27, nameplate HxW mm: 27x72, information plate HxW mm: 48x72, permissible ambient temperature: -20 to +50 °C, protection class: IP44, UV resistance: unlimited, scope of delivery, for labeling: nameplates