Perimeter Performance of AI by Camera (Number of Channels): All channels (4 targets/s)
SMD Plus
SMD Plus by Recorder: 4 channels: Secondary filtering for human and motor vehicle, reducing false alarms caused by leaves, rain and lighting condition change
Record Mode: General, motion detection; intelligent; alarm
Backup Method: USB device and network
Playback Mode: Instant playback; general playback; event playback; tag playback; smart playback
Alarm
General Alarm: Motion detection; camera external alarm; PIR alarm
Anomaly Alarm: Error (no disk, disk error, low space, low quota space; network disconnection; IP conflict; MAC conflict); video loss; video tampering; camera offline
Intelligent Alarm: Perimeter protection; SMD Plus
Alarm Linkage: Recording; snapshot; buzzer; log; preset; email; tour
Port
Audio Input: 1-channel RCA
Audio Output: 1-channel RCA
Alarm Input: NA (2 channels are optional)
Alarm Output: NA (1-channel 12 V 1 A output is optional)
Disk Interface: 1 SATA port. Each disk can contain up to 20 TB. this limit varies depending on the environment temperature.
Operating Temperature: –10 °C to +55 °C (14 °F to +131 °F)
Storage Temperature: –20 °C to +60 °C (–4 °F to +140 °F)
Operating Humidity: 10%–93% (RH), non-condensing
Certifications: CE-LVD: IEC 62368-1:2014, CE-EMC: EN IEC 61000-3-2:2019, EN 61000-3-3:2013+A1:2019, EN 55032:2015+A11:2020, EN 55035:2017+A11:2020, EN 55024:2010+A1:2015, EN 50130-4:2011+A1:2014
In the Box
Dahua NVR2104-4KS3 4CH Smart 1U 1HDD Lite Network Video Recorder