Compare SNC-ZM551 with SNC-VM631 (2)
| Contact manufacturer | Contact manufacturer | |
| Chip Inch Size |
1/3
|
1/3
|
| Colour Type |
True Day / Night
|
True Day / Night
|
| Resolution TVL |
1.3 MP
|
700
|
| Sensitivity lux |
0.30
|
0.05
|
| Dome Type |
Static
|
Static
|
| Digital (DSP) |
✔
|
✔
|
| Voltage |
12 V DC, 24 V AC
|
12 V DC
|
| Focal length |
3.1 ~ 8.9 mm
|
3 ~ 9 mm
|
| Rotation Angleso |
180
|
--
|
| Compression |
H.264, MPEG-4, JPEG
|
H.264, JPEG
|
| Back Light Compensation |
✔
|
--
|
| Auto Gain Control |
✔
|
✔
|
| White Balance |
✔
|
✔
|
| Electronic Shutter range |
1/1 s ~ 1/10,000 s
|
1/1 ~ 1/1000s
|
| Signal Mode |
NTSC, PAL
|
NTSC
|
| Presets |
--
|
8
|
| S/ N (Signal/ Noise) Ratio dB |
--
|
>50
|
| Synchronisation |
--
|
Internal
|
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