Surveillance cameras Comparison: Visionhitech, Dahua Technology (4)
Contact manufacturer | Contact | Contact | Contact | Contact |
Chip Inch Size " |
1/3
|
--
|
1/3
|
1/3
|
Colour Type |
True Day / Night
|
Colour
|
Colour / Monochrome
|
Colour
|
Resolution TVL |
>1100
|
8 MP
|
4MP
|
2MP
|
Voltage |
12 VDC
|
12 V DC
|
12 V DC
|
12 V DC
|
Picture Elements HxV |
2144 x 1588
|
--
|
2560 x 1440
|
1920 x 1080
|
S/ N (Signal/ Noise) Ratio dB |
>52
|
>65
|
>65
|
> 65
|
Sensitivity lux |
--
|
0.001
|
0 ~ 0.005
|
0 ~ 0.001
|
Focal Length mm |
--
|
2.8 mm; 3.6 mm
|
3.6
|
3.6 mm; 6 mm
|
Mount Type |
--
|
Wall, Pole, Ceiling
|
--
|
--
|
Wide Dynamic Range |
--
|
✔
|
✔
|
✔
|
Back Light Compensation |
--
|
✔
|
✔
|
✔
|
Auto Gain Control |
--
|
✔
|
✔
|
✔
|
White Balance |
--
|
✔
|
✔
|
✔
|
Electronic Shutter range |
--
|
PAL: 1/3 s–1/100000 s, NTSC: 1/4 s–1/100000 s
|
PAL: 1/25s–1/100000s , NTSC: 1/30s–1/100000s
|
1/25 s–1/100,000 s (PAL), 1/30 s–1/100,000 s (NTSC)
|
Signal Mode |
--
|
PAL, NTSC
|
PAL, NTSC
|
PAL, NTSC
|
Digital (DSP) |
--
|
--
|
✔
|
✔
|
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