CCTV cameras Comparison: Dahua Technology, Messoa (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Resolution TVL |
2.4 MP
|
540
|
700
|
700
|
| Digital (DSP) |
✔
|
✔
|
--
|
✔
|
| Sensitivity lux |
0.05
|
0.01
|
0.05
|
0.01
|
| Voltage |
12 V DC
|
12 V DC / 24 V AC / 90 ~ 260 V AC
|
12 V DC, 24 V AC
|
90 ~ 269 V AC
|
| Wide Dynamic Range |
✔
|
--
|
--
|
✔
|
| Picture Elements HxV |
1984 x 1125
|
752 x 582
|
976 x 494
|
976 x 582
|
| Auto Gain Control |
✔
|
✔
|
--
|
✔
|
| Electronic Shutter range |
1/3 ~1/100,000s
|
1/60 ~ 1/100,000
|
1/50(1/60) ~ 1/10,000
|
1/50(1/60) ~ 1/10K sec
|
| Chip Inch Size " |
--
|
1/3
|
1/3
|
1/3
|
| Colour Type |
--
|
Colour / Monochrome
|
Colour / Monochrome
|
Colour / Monochrome
|
| Lens Mount |
--
|
CS
|
CS
|
CS
|
| Back Light Compensation |
--
|
✔
|
--
|
--
|
| White Balance |
--
|
✔
|
--
|
✔
|
| Gamma Correction |
--
|
0.45
|
0.45
|
0.45
|
| S/ N (Signal/ Noise) Ratio dB |
--
|
50
|
>50
|
>50
|
| Synchronisation |
--
|
Internal
|
Internal, Line-lock
|
Internal, Line-lock
|
| Signal Mode |
--
|
PAL, NTSC
|
PAL, NTSC
|
PAL
|
| Auto Iris |
--
|
--
|
✔
|
--
|
| Direct Drive |
--
|
--
|
✔
|
--
|
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