Product Description: 1/4" SONY Ex-View CCD, 470 / 540 TV Lines (High Resolution Mode), Aluminum Alloy Construction, Intelligent Temperature Control, IP66, Includes 1 Spare Dome Cover, Multiple Protocols Supported, Low-noise, High Speed, OSD Configuration Menu, Path Memory Function, Privacy Masking, 128 Presets, 3.5 ~ 91mm Lens, 26x Optical Zoom, 12x Digital Zoom, 0.4 - 300° /sec. Pan Speed, -0.4 - 150° /sec. Tilt Speed, 360° Horizontal, 0 - 90° Vertical, RS 485 Communication, AC24V Input