Hikvision
DS-2CD2126G2-ISU
Dome Camera · 2.1MP (1920×1080)
- • 106° HFOV at 2.8mm
- • 30 m effective range
- • 30 m IR illumination
- • Low-light / ColorVu sensor
Side-by-side comparison · cross brand
Hikvision DS-2CD2126G2-ISU vs Dahua HAC-HDW1239TP-A-LED-S2
Spec-by-spec comparison of two dome camera models, with EN 62676-4 lens math and design recommendations.
Dahua
HAC-HDW1239TP-A-LED-S2
Dome Camera · 2.1MP (1920×1080)
- • 86° HFOV at 3.6mm
- • 30 m effective range
- • 20 m IR illumination
- • Low-light / ColorVu sensor
Specification side-by-side
| Hikvision DS-2CD2126G2-ISU | Dahua HAC-HDW1239TP-A-LED-S2 | |
|---|---|---|
| Manufacturer | Hikvision | Dahua |
| Form factor | Dome Camera | Dome Camera |
| Resolution | 2.1MP (1920×1080) | 2.1MP (1920×1080) |
| Focal length | 2.8mm | 3.6mm |
| Horizontal FOV | 106° | 86° |
| Effective range | 30 m | 30 m |
| IR distance | 30 m | 20 m |
| Low-light / ColorVu | Yes | Yes |
Verdict
Both cameras offer comparable specs on paper. The choice typically comes down to vendor lock-in, NDAA compliance and existing VMS integrations rather than raw imaging numbers.
Frequently asked questions
Is Hikvision DS-2CD2126G2-ISU better than Dahua HAC-HDW1239TP-A-LED-S2?
Both cameras offer comparable specs on paper. The choice typically comes down to vendor lock-in, NDAA compliance and existing VMS integrations rather than raw imaging numbers. For installation-specific advice — mounting height, tilt, obstacle shadowing, BOM and PoE budget — drop both cameras into TodAidesign and the FOV cones, DORI rings (per EN 62676-4) and cable schedule render in real time on a satellite map or imported floor plan.
What is the field of view of Hikvision DS-2CD2126G2-ISU vs Dahua HAC-HDW1239TP-A-LED-S2?
Hikvision DS-2CD2126G2-ISU has a 106° horizontal FOV at 2.8mm. Dahua HAC-HDW1239TP-A-LED-S2 has a 86° horizontal FOV at 3.6mm. Hikvision covers a wider scene at the same distance; the FOV calculator on TodAidesign converts these into linear meters of coverage at any chosen target distance.
Which camera has stronger IR illumination?
Hikvision DS-2CD2126G2-ISU reaches 30 m of IR illumination versus 20 m for Dahua HAC-HDW1239TP-A-LED-S2. The further-reaching IR camera is the better fit for unlit yards, parking perimeters and warehouses without permanent lighting.
Can I plan a project mixing Hikvision and Dahua cameras?
Yes. TodAidesign is multi-vendor by design — drop Hikvision and Dahua cameras on the same canvas, share the same EN 62676-4 lens math and DORI ring overlays, and consolidate them into one BOM with cable schedule and PoE budget. Vendor design tools (Axis Site Designer, Hikvision HiTools, Dahua Project Design Tool, i-PRO SDT) cannot do this because each speaks only its own catalog.
Continue reading
FOV Calculator →
Convert 106° vs 86° HFOV into linear coverage at any distance.
DORI Calculator →
Compute Detect / Observe / Recognize / Identify ranges per EN 62676-4.
Bandwidth Calculator →
Estimate Mbps per camera for codec, FPS, scene complexity.
Browse all cameras →
Verified in-stock camera specifications.
Test both cameras in your project
Drop Hikvision DS-2CD2126G2-ISU and Dahua HAC-HDW1239TP-A-LED-S2 on a real satellite map or imported floor plan. See live FOV cones, DORI rings, BOM and cable schedule in seconds.