This product is either discontinued or we cannot get that from suppliers.
Dahua DH-IPC-HDW2431EMP-AS-0280B-S2 4mp Starlight Ip Turret 2.8mm Lens, Sensor: 1/3” 4Megapixel progressive CMOS, Max. Resolution 2688 (H) × 1520 (V), ROM 128 MB, RAM 128 MB, Scanning System Progressive, Electronic Shutter Speed Auto/Manual 1/3 s–1/100000 s, Min. Illumination 0.01 Lux @ F1.6, S/N Ratio >56 dB, Illumination Distance 30 m (98.43 ft), Illuminator On/Off Control Auto/Manual, Illuminator Number 2 (IR LED), Lens Fixed-focal, Mount M12.
With upgraded H.265 encoding technology, Dahua Lite series network camera has efficient video encoding capacity, which saves bandwidth and storage space.