23x Mini PTZ Dome Camera. Powerful 23x optical zoom. High resolution@540TVL. DWDR, Day/Night (ICR), DNR (2D&3D), Auto iris, Auto focus, AWB, AGC, BLC. Max 300°/s pan speed, 360° continuous pan rotation. Up to 255 presets, 5 auto scan, 8 tour, 5 pattern. Built-in 2/1 alarm in/out. Support intelligent 3D positioning with DH-SD protocol. IP66. -10ºC ~ 50ºC / Less than 90% RH. ?170mm×155mm.