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The Dahua DHI‑NVR616‑64/128‑4KS2 Network Video Recorder is a professional Ultra Series IP recorder supporting up to 64/128 camera channels, 4K resolution output, extensive RAID storage, and advanced AI‑capable video analytics. With robust Intel processing, remote management, and multi‑screen display, this NVR delivers scalable, high‑performance surveillance recording for enterprise, industrial, and mission‑critical environments.

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MAIN FEATURES:
- Resolution: 2MP (1920×1080)
- Sensor: 1/2.8″ CMOS sensor
- Lens: 3.6mm fixed lens
- Field of View: 83.6° horizontal
- Night Vision: IR LED range up to 30m (98ft)
- Weatherproofing: IP67 rating
- Vandal Resistance: IK10 rating
- Operating Temperature: -40°C to 60°C (-40°F to 140°F)
- Power Supply: 12V DC
- Video Compression: H.264 and H.265
- Storage: Micro SD card slot (up to 128GB)
- Detection: Motion detection and tampering detection
- Color: Color camera with true day/night functionality

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MAIN FEATURES:
- Camera: 5MP
- Image Sensor: 1/2.7″ CMOS
- Effective Pixels: 2592(H)×1944(V), 5MP
- Scanning System: Progressive
- Electronic Shutter Speed: PAL: 1/25~1/100000s, NTSC: 1/30~1/100000s
- Minimum Illumination: 0.02Lux/F1.85, 30IRE, 0Lux IR on
- S/N Ratio: More than 65dB
- IR Distance: Up to 80m (262feet)
- IR On/Off Control: Auto / Manual
- IR LEDs: 2
- Lens: Fixed lens / Fixed iris
- Mount Type: Board-in
- Focal Length: 3.6mm (2.8mm, 6mm, 8mm optional)
- Max Aperture: F1.85
- Angle of View: H: 77.5° (98°/49°/37°)
- Close Focus Distance: 1400mm (900mm/2800mm/4500mm)
- DORI Distance: Detect: 2.8mm: 63m(207ft), 3.6mm: 80m(262ft), 6mm: 120m(394ft), 8mm: 160m(525ft) and Observe: 2.8mm: 25m(82ft), 3.6mm: 32m(105ft), 6mm: 48m(157ft), 8mm: 64m(210ft)

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