Arecont Vision
MegaVideo Compact Dual Sensor Megapixel Camera
Arecont Vision announces a highly-optimized, monochrome, 1.2MP image sensor with superior low light performance that captures highly-detailed images in changing lighting conditions by switching from color WDR to monochrome imaging when light levels fall below a specified threshold, or by streaming images from both sensors simultaneously. Features include: dual H.264 (MPEG-4 Part 10) and MJPEG encoders, fast frame rates, up-scaling of the 1.2MP monochrome sensor to 3MP to support video management systems (VMS), bit rate control, multi-streaming, forensic zooming and PoE.
http://blog.arecontvision.com/2014/04/02/arecont-vision-megavideo-compact-dual-sensor-megapixel-cameras-set-benchmarks-daynight-performance/