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Working voltage: 15V (whole system supply power) Connection: 2-core wire (no polarity) Appearance color: gray Installation: surface-mounted Time for display: 60 seconds Functions: video intercom, surveillance and unlocking Status indicators:Power: lights when power on Operate: lights when system in useHandsfree Monitor outdoor phone and intercom, remotely unlock Simple push-button operating Receive alarms and memory alarm information Monitor turns on instantly when call button pressed OEM and ODM orders are welcome Screen size: 7 inches
