Audio/indoor home station with headphones for 2-wire technology, suitable for wall or desk mounting, table accessories sold separately In addition to the 3 sensor keys, the cabin has a door sensor, call reception, stair lighting and an ignition/switching station Door automation (medical activation) This function opens the door after the call from the door station has been interrupted. Class 100 a16e rings and the door opener is automatically activated Choose between 16 melodic sounds; it allows you to differentiate between door calls and piano calls with 2 different melodies. Adjust the volume using the control knob Disassemble the old BTici 2-wire video intercom system. Install the newly connected CLASSE 100 without the need for additional devices and/or cables. The 2-wire video intercom systems BTicino are equipped with removable SCS bus standard terminals for maximum simplicity. Bus connection, reference to plans and additional explanation. Before you proceed with the purchase, check the compatibility of the device with the devices that are already installed in your home The volume of the ringtone is adjusted by means of a side control. LED indicator for ring off, door opener and connection status Surface mounting using the included wall bracket. Dimensions W × H × D 102 × 155 × 18.5 mm, Weight: 0.3747858454 pounds, Manufacturer: BTicino SPA