COMELIT 2703U Mini 2-Button Intercom, Universal

MINI series universal intercom compatible with the majority of interphones produced by the main world manufacturers. Ideal for replacements and repairs of intercom installations. Door opener button and additional button for additional services with independent common. Electronic or mechanical ringtone. Call volume and privacy adjustment via 3-position selector. Privacy activation is indicated by a red indicator. It also has a volume regulator for loudspeaker and volume regulator for microphone to satisfy any need, it can be used both for systems with positive common and for systems with negative common. Dimension