IP cameras Comparison: Dahua Technology, AV Costar (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Chip Inch Size |
1/3
|
--
|
--
|
1/3
|
| Colour Type |
True Day / Night
|
--
|
True Day / Night
|
Colour / Monochrome
|
| Resolution |
4MP
|
3MP
|
1080p
|
3 MP
|
| Digital (DSP) |
✔
|
✔
|
✔
|
✔
|
| Sensitivity Lux |
0 ~ 0.4
|
--
|
--
|
--
|
| Auto Iris |
✔
|
✔
|
✔
|
--
|
| Direct Drive |
✔
|
✔
|
✔
|
--
|
| Voltage |
12 V DC, PoE
|
12 V DC, 24 V AC
|
PoE
|
--
|
| Focal Length mm |
3.6
|
--
|
--
|
--
|
| Mount Type |
Wall, Pole
|
--
|
--
|
--
|
| Wide Dynamic Range |
✔
|
✔
|
✔
|
✔
|
| Back Light Compensation |
✔
|
--
|
--
|
--
|
| Auto Gain Control |
✔
|
--
|
--
|
--
|
| White Balance |
✔
|
--
|
--
|
--
|
| Electronic Shutter Range |
1/3 s to 1/100,000 s
|
--
|
--
|
--
|
| S/ N (Signal/ Noise) Ratio dB |
> 50
|
--
|
--
|
--
|
| Motion Activated |
--
|
✔
|
--
|
--
|
| Image Frame Rate |
--
|
21 fps
|
30 fps
|
--
|
| Specialist Type |
--
|
--
|
Network
|
Megapixel
|
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