1. With track remember function 2. Continuously rotate 360°, fastest speed can reach 300°/S 3. 4ch alarm input, 1ch alarm output 4. 128 presets 5. OSD English function 6. Integration kinds of protocols & baud rates Day/Night vision, Color 1/4" Sony Exview DSP CCD, 0.01LUX 480TVL 22X optical and 10X digital. 　 Specifications: Image sensor 1/4" Sony CCD Active pixels NTSC:811(H )×508(V) PAL:795(H )×596(V) Synchronization Internal/External Video output 1.0 Vp-p (75 Ohms, composite) White balance Auto/Manual Scanning frequency 15.625KHz (H) 50Hz (V) Resolution Color 480 TV Line S/N Ratio More Than 48dB Electronic Shutter 1/1.5~1/4000s Min. illumination 0.01LUX Lens focal length 22X optical and 10X digital. Focus/Iris Auto/Manual Pan Speed 0.4 o~ 320 o /s Tilt Speed 0.4 o ~ 150 o /s Pan rotation 360 o continuous Tilt rotation 90 o (180 o auto overturn) Preset 128 (max) Control way Kinds of protocols, RS485 Relative humidity 10-75% (without agglomeration) Operation Temperature -40°C to +60°C (Outdoor); -10°C to +50°C (Indoor) Power AC 24V, 3A