Dome cameras Comparison: Bosch, Dahua Technology (4)

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	Bosch EnviroDome	Dahua Technology A42AL23	Dahua Technology DH-HAC-HDW1000MP	Dahua Technology DH-HAC-HDW1200EMP
Contact manufacturer	Contact	Contact	Contact	Contact
Chip Inch Size	1/4	1/3	--	--
Colour Type	Colour / Monochrome	Colour / Monochrome	--	--
Resolution TVL	460	4MP	720p	1080P
Sensitivity lux	0.0005	0.01	0.05	0.02
Dome Type	Continuous Rotation	--	Static	Static
Pan Speed ^o/ sec	360	--	--	--
Tilt Speed ^o/ sec	120	--	--	--
Indoor/Outdoor	Indoor/Outdoor	Indoor/Outdoor	--	--
Voltage	230 V AC	12 V DC	12 V DC	12 V DC
Focal length	4.1 ~ 73.8	3.6mm	3.6 mm	3.6 mm
Rotation Angles^o	360 pan, -5 ~ 90 tilt	--	--	--
Auto Gain Control	✔	✔	--	✔
White Balance	✔	✔	--	✔
S/ N (Signal/ Noise) Ratio dB	>50	>65	--	--
Synchronisation	Line-lock	--	Internal	Internal
Signal Mode	PAL/NTSC	--	--	--
Digital (DSP)	--	✔	✔	✔
Mount Type	--	Wall, Pole	--	--
Back Light Compensation	--	✔	--	✔
Electronic Shutter range	--	1/3 - 1/100,000s	1/50s ~ 1/100,000s	1/50s ~ 1/100,000s
Built-in IR LED	--	✔	✔	✔

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