DAHUA ME1809THP-A-PV 4K Smart Dual Light TiOC HDCVI Bullet Camera* The parameters and datasheets below can only be applied to ME1809 S2 series. Intelligent Voice Alarm function which can be used with Scheduled AI of AI XVR is only available for TiOC 2. 0 camera. * In order to use the Smart Dual Light HDCVI camera, the firmware of XVR must be upgraded to V4. 001. 0000004. 1. R. 220323 or later version. > Max 15 fps@4K. > 120 dB true WDR, 3D NR. > Smart Dual Light. > Protection Against Red Blue Light