COP-USA SDR35-H Functional Smoke Detector Color Camera with Real Alarm, 1/3" Color CCD Pick-up device, Horizontal Resolution 520 Lines, Scanning system 2:1 Interlace, DC 12V 150mA 1/3" Color CCD Pick-up device, Horizontal Resolution 520 Lines Alarm Output and 3.7mm Pinhole Lens Picture elements H x V: NTSC: 512 X 492 - PAL: 512 X 582 Vertical frequency: NTSC: 59.94Hz - PAL: 50Hz Mini illumination 0.1 Lux, S/N ratio More Than 48dB