Color IR Vandal-Proof Dome (UM-819R/809R/899R/889R) Model UM-819R UM-809R UM-899R UM-889R CCD Type 1/3" CCD 1/4" CCD 1/3" CCD 1/4" CCD Pixels PAL: 512HX582V PAL: 500HX582 NTSC: 512X492V NTSC: 510HX492V Scanning System PAL/NTSC Horizontal Resolution 420TVL Minimum Illumination 0 Lux IR ON S/N Ratio e48dB Video Output 1.0Vp-p/75© AGC AUTO White Balance Auto Backlight Compensation AUTO Exposure Mode EE Electronic Shutter 1/50 (1/60)-1/100000 SEC Gamma Correction 0.45 Sync. System Internal Synchronization IR View distance 20m Lens 6mm Standard Power Supply DC12v ± 5% Operation Temperature -10º C-50º C