7-inch color video indoor extension N

Model: TDJ-M2-SC / 7 (N) ink function features: ① the door host, wall unit, center, workstation / server multi-party call ② surveillance, remote unlocking ③16 polyphonic ringtones, ring volume, speaker volume, and video brightness, contrast adjustment ④ support and machine, automatic hang up function, with visual doorbell ⑤ a variety of status indicator lights for easy user identification, judgment, processing ⑥ use RJ45B standard network interface, simple and reliable wiring ⑦ Free mention the call, anti-whistle design parameters / Specifications Input voltage and current DC 16V ~ 20V, <310mA Working power consumption <6W Display LCD screen ringing sound pressure ≥80dB Operating temperature -35 ℃ -55 ℃ Humidity ≤80% Installation wall-mounted device size 246 * 139 * 24mm