IP cameras Comparison: Sony, Dahua Technology (4)

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	Sony SNC-P1	Dahua Technology DH-IPC-HFW1220S	Dahua Technology DH-IPC-HFW2431DG-4G-SP-EAU-B	Dahua Technology DH-IPC-HFW2431TP-ZS-S2
Contact manufacturer	Contact	Contact	Contact	Contact
Chip Inch Size	1/4	--	1/3	1/3
Colour Type	Colour / Monochrome	--	Colour / Monochrome	Colour / Monochrome
Resolution	650 x 494	2 MP	4MP	4MP
Digital (DSP)	✔	✔	--	--
Sensitivity Lux	3.0	--	0.01 Lux@F1.6 (Colour,30IRE), 0.001 Lux@F1.6 (B/W,30IRE), 0 lux (Illuminator on)	0.008
Voltage	12 V DC	12 V DC, PoE	MicroUSB / 5 VDC	12 V DC, PoE
Motion Activated	✔	--	✔	✔
Focal Length mm	3.8	3.6	2.8 mm; 3.6 mm; 6 mm	2.7 ~ 13.5
Image Frame Rate	30 fps	30fps	25/30 fps	25/30 fps
Auto Gain Control	✔	✔	✔	✔
White Balance	✔	✔	✔	✔
Electronic Shutter Range	1 ~ 1/10,000	1 ~ 1/100,000s	Auto/Manual 1/3 s–1/100,000 s	Auto/Manual 1/3 s–1/100000 s
Picture Elements HxV	--	1920 x 1080	--	--
Back Light Compensation	--	✔	✔	✔
S/ N (Signal/ Noise) Ratio dB	--	> 50	>56	>56
Mount Type	--	--	Wall, Pole	Pole
Wide Dynamic Range	--	--	✔	✔
Signal Mode	--	--	--	PAL

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