D1 18x Zoom NEMA 4X IP66 Extreme Weatherproof PoE Plus Speed Dome Network Camera SD83x4E. VIVOTEK SD8314E/24E is part of the SUPREME series product line offering D1 resolution with superb image quality. Adopting a 18x optical zoom lens, the SD8314E/24E is able to capture details at top-notch quality. The IP66- and NEMA 4X-rated housing protects the camera body against rain, dust, and corrosion within a wide temperature range of between -40C to 55C. This feature ensures operation under extreme weather conditions and hazardous environments. It is especially suitable for monitoring wide open indoor/outdoor spaces such as airports, highways and parking lots where high-level reliability and precision are always required. Focal Length: f = 4.1 ~73.8 mm, Aperture: F1.4 ~ F3.0 Feature: D1 SONY Exview HAD CCD Sensor 30 fps @ D1 18x Zoom Lens WDR Pro for Unparalleled Visibility in High Contrast Environments Removable IR-cut Filter for Day & Night Function 360 Continuous Pan and 220 Tilt Real-time H.264, MPEG-4 and MJPEG Compression (Triple Codec) Weather-proof IP66-rated and NEMA4X Housing -40C ~ 55C Wide Temperature Range for Extreme Weather Conditions Audio Detection for Instant Alerts Auto tracking for Moving Objects Built-in 802.3at Compliant PoE Plus 3D Privacy Masks for Additional Protection Built-in SD/SDHC/SDXC Card Slot for On-board Storage