CCTV cameras Comparison: American Dynamics, Dahua Technology (4)

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	American Dynamics ADC720D	Dahua Technology HAC-HFW1220R	Dahua Technology DH-HAC-T1A51-U	Dahua Technology HAC-HDW1200TMQ-Z(-A)
Contact manufacturer	Contact	Contact	Contact	Contact
Chip Inch Size "	1/3	1/3	--	1/3
Colour Type	Colour	Colour / Monochrome	Colour / Monochrome	Colour / Monochrome
Resolution TVL	330	2MP	5 MP	1080P
Sensitivity lux	2.0 @ F2.0	0 ~ 0.008	0.02 lux@F2.0 (Colour, 30 IRE) ; 0.002 lux@F2.0 (B/W, 30 IRE) ; 0 lux (Illuminator on)	0 ~ 0.02
Focal Length mm	3.6	3.6	2.8 mm; 3.6 mm	2.7 ~ 12
Picture Elements HxV	512 x 492	1920 x 1080	--	1920 x 1080
Auto Gain Control	✔	✔	✔	✔
Electronic Shutter range	1/60 ~ 1/100,000	1/25(1/30) ~ 1/50,000s	PAL: 1/25 s–1/100,000 s; NTSC: 1/30 s–1/100,000 s	PAL: 1/25s–1/100000s / NTSC: 1/30s–1/100000s
S/ N (Signal/ Noise) Ratio dB	>48	65	>65 dB	>65
Synchronisation	Internal	--	--	--
Signal Mode	NTSC	PAL, NTSC	PAL, NTSC	PAL, NTSC
Digital (DSP)	--	✔	--	--
Direct Drive	--	✔	--	--
Voltage	--	12 V DC	12 V DC	12 V DC
Wide Dynamic Range	--	✔	✔	✔
Back Light Compensation	--	✔	✔	✔
White Balance	--	✔	✔	✔
Motion Activated	--	--	✔	--
Mount Type	--	--	Wall, Ceiling	Wall, Pole
Specialist Types	--	--	--	Infrared

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