| Functions | Smart Codec With advanced scene-adaptive rate control algorithm, Dahua smart |
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| Perimeter Protection by Camera | codec technology realizes the higher encoding efficiency than H.265 DMSS |
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| Face Detection by Camera | The DMSS app is available on the iOS App Store and Google Play. It |
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| best face snapshot. | anytime from virtually anywhere. www.dahuasecurity.com |
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| Technical Specification | 1. Play/pause/stop/slow/quick/backward/by frame |
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| Playback Function | 2. Full screen, backup (video clip/file), partial zoom in, |
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| System | and audio on/off |
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| Main Processor | Industrial-grade embedded processor Storage |
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| OS | Embedded Linux |
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| Disk Group | Yes |
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| Operation Interface | Web/operating in local GUI Alarm |
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| Performance | 4 channels Camera disconnection, storage error, disk full, IP conflict, Anomaly Alarm |
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| AI Search | Search for pictures by channel, time and event type MAC conflict, login locked, and cybersecurity exception Face detection, perimeter protection (intrusion and |
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| Face Attributes | email mask, and beard External Port |
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| 音訊輸入 | 1 × RCA input SMD Plus by Camera |
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| HDD | maximum HDD capacity varies with environment temperature |
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| 警報輸入 | 4 |
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| Access Channel | 4 |
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| 警報輸出 | 2 Access: 160 Mbps; Storage: 160 Mbps; Forward: 64 |
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| Network Bandwidth | Mbps USB 2(1 × front USB2.0; 1 × back USB2.0) |
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| 解像度 | 8MP; 6MP; 5MP; 4MP; 3MP; 1080p; 720p; D1 |
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| HDMI | 1 (supports up to 4K resolution output) |
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| 解碼能力 | 4 × 1080p@30 fps |
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| VGA | 1 1 × VGA output, 1 × HDMI output, supports |
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| Video Output | Network 1 × RJ-45, 10/100/1000 Mbps self-adaptive Ethernet port simultaneous video sources output for VGA and HDMI |
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| Multi-screen Display | 1 , 4 views General Parameter |
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| Third-party Camera | Power Supply DC12 V, 4 A ONVIF; RTSP Access |
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| 功耗 | < 10 W (HDD not included, idling) Compression |
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| 淨重 | 1.51 kg (3.33 lb) |
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| Video | Smart H.265/H.265/Smart H.264/H.264/MJPEG |
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| 毛重 | 2.76 kg (6.08 lb) |
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| Audio | PCM/G711A/G711U/G726/AAC 375 mm × 282.4 mm × 53 mm (14.76" × 11.12" × 2.09") Product Dimensions (W × L × H) 141 mm × 433 mm × 366 mm (5.55" × 17.05" × 14.41") HTTP; HTTPS; TCP/IP; IPv4/IPv6; UPnP; SNMP; RTSP; Package Dimensions (W × L × H) UDP; SMTP; NTP; DHCP; DNS; IP Filter; DDNS; FTP; Alarm Network Protocol Server; IP Search (Support Dahua IP camera; DVR; NVS; Operating Conditions –10 °C to +55 |
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| 儲存環境 | 0 °C to +40 °C (32 °F to 104 °F) |
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| Mobile Phone Access | Android; iOS |
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| 工作濕度 | 10℅~93℅ |
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| Interoperability | ONVIF(profile T/S/G); CGI; SDK |
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| Storage Humidity | 30%~85% |
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| Browser | Chrome; IE9 or later; firefox |
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| Operating Altitude | 3000 m (9842.52 ft) Record Playback |
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| 安裝 | Desktop mounted |
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| Multi-channel Playback | Up to 4 channels for playback CE: EN62368-1; EN55032,EN55024, EN55035, EN61000- |
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| Certifications | 3-2, EN61000-3-3 EN50130-4 Manual record; alarm recording; SMD recording; smart |
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| Record Mode | FCC: Part 15 Subpart B recording |
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| Storage | Local HDD; network |
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| Backup | USB storage device www.dahuasecurity.com Ordering Information |
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| 類型 | Model Description |
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| DHI-NVR4204- | 4 Channel 1U 2HDDs Network Video 4 Channel NVR 4KS2/L Recorder Dimensions (mm[inch]) <> <> <> <> Panels 1 5 9 2 3 4 6 7 8 1 Power Switch 2 DC 12V Power Input 3 Network Port 4 VGA Port 5 Mic Out 6 Mic In 7 HDMI Port 8 USB Port 9 Alarm Input/Output |
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| Rev 002.000 | © 2022 Dahua. All rights reserved. Design and specifications are subject to change without notice. The images, specifications and information mentioned in the document are only for reference, and might differ from the actual product. www.dahuasecurity.com |
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