IP cameras Comparison: AV Costar, Dahua Technology (4)

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	AV Costar AV2105	Dahua Technology DH-IPC-HFW2431DG-4G-SP-EAU-B	Dahua Technology DH-IPC-HFW1220S	Dahua Technology DH-IPC-HFW2431TP-ZS-S2
Contact manufacturer	Contact	Contact	Contact	Contact
Chip Inch Size	1/2	1/3	--	1/3
Colour Type	Colour	Colour / Monochrome	--	Colour / Monochrome
Resolution	1600 x 1200	4MP	2 MP	4MP
Specialist Type	Megapixel	--	--	--
Sensitivity Lux	0.1 Lux @ F1.4	0.01 Lux@F1.6 (Colour,30IRE), 0.001 Lux@F1.6 (B/W,30IRE), 0 lux (Illuminator on)	--	0.008
Lens Mount	C/CS	--	--	--
Voltage	PoE	MicroUSB / 5 VDC	12 V DC, PoE	12 V DC, PoE
Image Frame Rate	32 fps	25/30 fps	30fps	25/30 fps
Back Light Compensation	✔	✔	✔	✔
Auto Gain Control	✔	✔	✔	✔
White Balance	✔	✔	✔	✔
S/ N (Signal/ Noise) Ratio dB	45	>56	> 50	>56
Motion Activated	--	✔	--	✔
Focal Length mm	--	2.8 mm; 3.6 mm; 6 mm	3.6	2.7 ~ 13.5
Mount Type	--	Wall, Pole	--	Pole
Wide Dynamic Range	--	✔	--	✔
Electronic Shutter Range	--	Auto/Manual 1/3 s–1/100,000 s	1 ~ 1/100,000s	Auto/Manual 1/3 s–1/100000 s
Digital (DSP)	--	--	✔	--
Picture Elements HxV	--	--	1920 x 1080	--
Signal Mode	--	--	--	PAL

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