Two-Way Speech Door Intercoms

2 ½’’ COLOUR VIDEO MONITOR * TWO-WAY SPEECH AUDIO INTERCOMILLUMINATED CALLER BUTTON ACTIVATES CALLER ALERT ON INTERNAL UNITPOWERED BY MAINS 12V POWER ADAPTORS (SUPPLIED)CABLE CONNECTED CALLER/INTERNAL UNIT (UP TO 30m CABLE LENGTHCLEAR DIGITAL AUDIO QUALITY WITH VOLUME CONTROLDOOR LOCK RELEASE BUTTON

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