SOUND MODULE WITH B/W VIDEO CAMERA EL530
Includes CCD b/w camera with pan adjustment and light emiter for night vision.
To be used on 3+coax or 4+ twisted pair video door phone panels.
Acoustic acknowledgement signal at the door panel confirming that the call is in progress or the system is busy.
Handset hang recognition that removes busy channel fixed times.
Privacy on audio, video and door open progresses.