Key Specifications/Special Features: Image sensor: 1/3-inch Sony CCD IR cut auto iris lens: 4 to 9mm Scanning area: 4.9 x 3.7mm Picture element: PAL: 752 × 582 pixels NTSC: 768 x 494 pixels TV system: PAL and NTSC Horizontal resolution: 420/540TVL Minimum illumination: IR on 0Lux S/N ratio: more than 48dB Auto electronic shutter: PAL: 1/50 to 1/100,000 seconds NTSC: 1/60 to 1/100,000 seconds Gamma characteristic: 0.45 Auto gain control: auto Auto white balance: auto Backlight compensation: auto Material: aluminum alloy Synchronous system: internal synchronization Lens mount: auto iris 4 to 9mm Video output: 1.0Vp-p, 75 BNC connector Infrared lamps irradiation distance: 60m Protection rate: IP66 Power supply: 12V±10% DC Power consumption: 110mAh (IR on, 550mAh maximum) Operating temperature: -10 to +50°C Dimensions: 290 x 109 x 142mm Weight: 720g Product Certification:CE,FCC