Dahua IPC-HFW2441T-AS 4MP Starlight Mic PoE IP Network Kamera WizSense SMD+
> Alarm: 1 in, 1 out ; audio: 1 in, 1 out ; supports max. 256 G Micro SD card; built in MIC. > SMD Plus. > Built-in IR LED, and the max. illumination distance is 80 m. > 4-MP 1/2.9" CMOS image sensor, low luminance, and high definition image.