Surveillance cameras Comparison: Dahua Technology, Bosch (4)
| Contact manufacturer | Contact | Contact | Contact | Contact |
| Resolution TVL |
4 MP
|
540
|
--
|
330
|
| Digital (DSP) |
✔
|
✔
|
--
|
✔
|
| Auto Iris |
✔
|
✔
|
--
|
--
|
| Sensitivity lux |
0 ~ 0.03
|
0.018
|
--
|
0.24
|
| Direct Drive |
✔
|
✔
|
--
|
--
|
| Voltage |
12 V DC
|
230 V AC
|
24
|
12 V DC / 24 V AC
|
| Motion Activated |
✔
|
✔
|
--
|
--
|
| Focal Length mm |
3.6 ~ 8
|
--
|
--
|
2.8 ~ 50
|
| Picture Elements HxV |
2688 x 1520
|
752 x 582
|
--
|
500 x 582
|
| Back Light Compensation |
✔
|
✔
|
--
|
✔
|
| Auto Gain Control |
✔
|
--
|
--
|
✔
|
| White Balance |
✔
|
✔
|
--
|
--
|
| Electronic Shutter range |
1/25 ~ 1/100000s
|
--
|
--
|
1/50 ~ 1/125,000
|
| S/ N (Signal/ Noise) Ratio dB |
65
|
50
|
--
|
50
|
| Signal Mode |
PAL, NTSC
|
PAL
|
--
|
CCIR/EIA
|
| Chip Inch Size " |
--
|
1/3
|
--
|
1/3
|
| Colour Type |
--
|
Colour / Monochrome
|
--
|
Colour
|
| Lens Mount |
--
|
C/CS
|
--
|
C/CS
|
| Synchronisation |
--
|
Line-Lock
|
--
|
Internal, Line-lock
|
| Accessories |
--
|
--
|
Power supply unit
|
--
|
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