23x Cost-effective PTZ Dome Camera. Powerful 23xoptical zoom. High resolution@540TVL. Day/Night (ICR), DNR (2D), 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. Support intelligent 3D positioning with DH-SD protocol. IP66. Heater.