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NB-4M-B28 image

NB-4M-B28 4 MP fixed bullet camera, three-quarter view from the right
Discontinued Value series

NB-4M-B28

4 MP fixed bullet camera

Replaced by the NB-4M-B28L. Firmware and datasheets remain available for installed systems.

  • Resolution 4MP
  • Lens 2.8mm
  • Light 30m
  • 4 MP at 20 fps
  • 30 m infrared
  • H.265+
  • IP67
Orderable models 1
  • NB-4M-B28 (2.8 mm) Discontinued

Overview

How far it sees

DORI distances at the widest lens: the range at which a person can be detected, observed, recognised or identified.

Detect
60 m
Observe
24 m
Recognise
12 m
Identify
6 m

Specifications

Image sensor
1/3″ progressive-scan CMOS
Max. resolution
2560 × 1440
Min. illumination
Colour: 0.005 lux @ F1.6, B/W: 0 lux with IR
Shutter
1/3 s to 1/100,000 s
WDR
120 dB

Lens type
Fixed focal
Focal length
2.8 mm
Horizontal FOV
81°
Aperture
F1.6

Detect
60 m
Observe
24 m
Recognise
12 m
Identify
6 m

Supplemental light
Infrared (850 nm)
Range
Up to 30 m
Smart light control
Yes, anti-overexposure

Compression
H.265, H.265+, H.264, MJPEG (sub-stream)
Main stream
25 fps @ 2560 × 1440
Bit rate
32 Kbps to 16 Mbps

Protocols
TCP/IP, HTTPS, RTSP, NTP, 802.1X, IPv6, SNMP, TLS 1.3
API
Open video interface (Profiles S, G, T), Dhonaadhi SDK
Security
Signed firmware, secure boot, encrypted storage, audit log

Power
PoE (802.3af), 12 V DC
Operating temperature
−30 °C to 60 °C
Protection
IP67

Certifications
CE, FCC, UL 62368-1, RoHS, EN 50131 (where applicable)

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