IP cameras Comparison: Messoa, Dahua Technology (4)
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Chip Inch Size |
1/3
|
1/2
|
1/1.8
|
1/2
|
Colour Type |
True Day / Night
|
Colour / Monochrome
|
Colour
|
Colour / Monochrome
|
Resolution |
3 MP
|
4MP
|
2×4MP
|
640 x 512
|
Digital (DSP) |
✔
|
✔
|
--
|
✔
|
Specialist Type |
Infrared
|
--
|
--
|
Thermal
|
Sensitivity Lux |
0
|
0 ~ 0.015
|
0.0005 lux@F1.0 (Color, 30 IRE), 0.0002 lux@F1.0 (B/W, 30 IRE), (Illuminator on) 0
|
--
|
Auto Iris |
✔
|
✔
|
--
|
✔
|
Direct Drive |
✔
|
✔
|
--
|
✔
|
Voltage |
24 V AC, PoE
|
12 V DC, PoE
|
12 V DC, PoE+, ePoE
|
--
|
Motion Activated |
✔
|
--
|
--
|
--
|
Focal Length mm |
2.8
|
2.8 ~ 6
|
3.6 mm
|
100mm; 20mm ~ 100mm; 30mm ~ 150mm; 38mm ~ 190mm
|
Wide Dynamic Range |
✔
|
✔
|
✔
|
✔
|
Picture Elements HxV |
2304 x 1536
|
2688 x 1520
|
--
|
--
|
Image Frame Rate |
30 fps
|
25 ~ 30 fps
|
--
|
20 ~ 30 fps
|
Back Light Compensation |
✔
|
✔
|
✔
|
✔
|
Auto Gain Control |
✔
|
✔
|
✔
|
✔
|
White Balance |
✔
|
✔
|
✔
|
✔
|
Electronic Shutter Range |
1/10,000s ~ 1/7.5s
|
1/3~1/100000s
|
Auto/Manual 1/3 s–1/100,000 s
|
1/1s ~ 1/100000s
|
Signal Mode |
NTSC
|
PAL, NTSC
|
--
|
--
|
Mount Type |
--
|
Pole, Corner
|
--
|
--
|
S/ N (Signal/ Noise) Ratio dB |
--
|
--
|
>56
|
> 55
|
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