Production characteristic:

2.5" Vandal-proof Dome Camera
SONY CCD
420/480/520/540TVL
3.6mm/6mm Lens 
High Enphotic Vandal-proof Ball Case
3-Axis Gimbals

Technical Parameter：

Model	S3M	S4M	H3M	H4M
Image Sensor	1/3"SONY CCD	1/4"SONY CCD	1/3"SHARP CCD	1/4"SHARP CCD
Signal System	PAL/NTSC
Horizontal System	420TVL
Effective Pixels  （H ×V）	PAL:500×582；NTSC:510×492
Shuttle Speed	PAL=1/50 ~1/100,000 sec；NTSC=1/60 ~1/100,000 sec
Mini Illumination	0.1 Lux
S/N Ratio	> 48dB（Auto Gain Off）
Gamma	0.45
Lens	Auto Iris Vari-focal lens
Blacklight Compensation	Auto
Video Output	1.0VP-P,75Ω
White Blance	Auto
Power	DC12V
Current	100mA
Operating Temperature	-10 ~ 50℃（relative humidity:the most 95%）