Key Specifications & Features

1. Camera Model & Type

   • Model: DS-2CD2047G2-LU/SL (2.8 mm).

   • Part of Hikvision’s “Pro Series / EasyIP 4.0” line.

   • Fixed mini bullet-style network camera.

2. Image Sensor & Resolution

   • Uses a 1/1.8″ progressive-scan CMOS sensor.

   • Maximum resolution: 2688 × 1520 (~4 MP).

3. Lens / Field of View

   • Fixed focal length: 2.8 mm.

   • Field of View (FOV) for 2.8 mm: approx. 111.9° (horizontal), 60.5° (vertical), 133.6° (diagonal).

   • Lens mount: M16.

   • Aperture: F1.0 (very “bright” lens).

   • Depth of Field (2.8 mm): ~3.1 m to infinity.

4. Low-Light / Illumination

   • Very low minimum illumination in color: 0.0005 Lux (F1.0, AGC on).

   • With the built-in white light (strobe), it can go to 0 Lux.

   • Supplementary white light (strobe) range: up to 40 m.

   • “Smart” supplement light: Yes, it adjusts / intelligently uses the white-light.

5. Dynamic Range / Image Enhancement

   • Supports 130 dB WDR (Wide Dynamic Range) — helps in very high contrast / backlit scenes.

   • Other image-enhancement features: BLC (Back Light Compensation), HLC (Highlight Compensation), 3D DNR (Noise Reduction).

6. Video / Compression

   • Supports H.265, H.265+, H.264, H.264+ encoding.

   • Bit rate control: CBR and VBR.

   • Offers multiple video streams (main + sub + third) for flexible network usage.

7. Audio

   • Built-in microphone (for audio capture).

   • Audio compression: supports formats like G.711, MP3, AAC-LC.

   • Two-way audio (speaker + mic) for real-time communication / warning. According to spec, it has a built-in speaker.

8. Network & Storage

   • Network protocols supported: TCP/IP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTSP, NTP, UPnP, SMTP, IGMP, 802.1X, QoS, IPv4, IPv6, SNMP, WebSocket.

   • Supports up to 32 users (multi-user access) with 3 levels (admin, operator, user).

   • On-board storage: microSD / microSDHC / microSDXC support up to 512 GB.

   • Network storage: NAS (NFS, SMB/CIFS) + ANR (Auto Network Replenishment).

9. Smart / AI Features

   • Human and vehicle classification (deep-learning based) for motion detection / smart events.

   • Smart events: line crossing detection, intrusion detection, region entrance/exiting, scene-change detection.

   • Face capture: supported.

10. Security / Protection

    • Password protection, IP filtering, HTTPS encryption.

    • Supports TLS 1.1 / 1.2.

    • Security audit log for events.

11. Operating Conditions

    • Operating temperature: -30 °C to +60 °C.

    • Operating humidity: up to 95% (non-condensing).

12. Power Supply

    • Power options: 12 V DC (0.5 A) or PoE (IEEE 802.3af, Class 3).

    • Max power consumption: ~6 W (12 V) / ~7.5 W (PoE).

13. Mechanical / Dimensions

    • Camera size: ~Ø74.4 mm × 179.2 mm.

    • Weight: ~510 g.

14. Durability / Environmental Protection

    • Ingress protection rating: IP67 (dust-tight, water-resistant).

    • Has a reset key.

15. Deterrent / Alarm Features

    • Strobe light (white-light) built into the camera to act as a visual alarm.

    • Audible warning / siren built in (can warn intruders).

    • Can trigger alarm output / action on smart event (upload image, send email, etc.).

16. Image Quality & Usability

    • Day/Night: automatic / scheduled switching.

    • Configurable image parameters: saturation, brightness, contrast, sharpness, gain, white balance.

    • Mirror mode, privacy mask supported.

17. User Interface / Compatibility

    • Compatible with Hikvision clients: iVMS-4200, Hik-Connect, Hik-Central.

    • Web browser support: works on modern browsers (Chrome, Firefox, Edge); legacy support for IE with plugin.