DH-HAC-B2A51N

The Dahua DH-HAC-B2A51N is a 5MP HDCVI Fixed IR Bullet Camera from the Cooper Series (S2 variant, NTSC version), offering reliable analog HD surveillance with Smart IR night vision up to 20m.
It supports max 20-25 fps@5MP (2592×1944 or 2880×1620 16:9 output), multi-format switchable video (CVI/CVBS/AHD/TVI), DWDR, and requires compatible XVR firmware for optimal performance.
Key Specifications
Feature
Specification
Image Sensor
1/2.7" CMOS ​
Resolution
2592 × 1944 or 2880 × 1620 @ 20-25 fps 
Lens
3.6 mm fixed (2.8/6 mm optional; F1.85-F2.0) ​
Illumination
Smart IR up to 20 m ​
Min. Illumination
0.04 lux @ F2.0; 0 lux IR on ​
Image Enhancement
DWDR, 2D NR, BLC/HLC ​
Formats
CVI/CVBS/AHD/TVI switchable ​
Power
12 VDC (max 3.9 W IR on) ​
Protection
IP67 weatherproof (-40°C to +60°C) ​