GW Security Inc VD821SDI-T 1080P HD-SDI IR Auto Tracking PTZ Camera Auto-tracking With aluminum alloy Wiper 5 inch aluminum alloy casing Smart temperature control, temperature display. Build in RTC clock, timing function Video stream support HD-SDI mode Quick installation instruction. Voltage detectable in real time via OSD. Wall bracket with Power Box 1 Year Warranty and Free Life Time Tech Support.