With industry-leading HDFDI HD fiber transmission technology, the QH-FB441-V is designed on a high-performance 1/2.5 "progressive-scan CMOS sensor that reproduces image clarity with vivid colour to support 1080p standard HD-SDI HD video transmission, fast without delay, and up to 20 km HD fibre optic transmission. It is described as a new generation of innovations and is marketed as China's first 20-km high-definition video surveillance transmission solution.

HDFDI is a terminology introduced by Qihan as a new generation of high-speed interconnection technology; it features low latency bandwidth, high speed, strong anti-jamming capability, long transmission distance. The HDFDI optical fibre box camera, QH-FB441-V, has been developped on this Qihan proprietary technology--a new generation of optical transmission protocol - HDFDI, which can output 2 megapixels without full HD real-time video compression reaching a maximum transmission distance of 20 km.

As the product uses the ultra precise image analysis technology, 2D noise reduction and adaptive image processor technology, the QH-FB441- V reproduces 1920 x1080 (2 megapixels) image resolution, supporting original compressed video information real-time output, free from extreme image resolution and image quality.

Using an auto switching ICR infrared filter plate, according to the strength of the light day and night, the HDFDI optical fibre box camera can automatically adjust between colour and black and white, compared with a traditional single filter. In addition, the camera also supports infrared light, enhancing the degree of image colour reduction during the day, and also improving the night vision environment picture clarity.

Qihan's QH-FB441-V Series HDFDI optical cameras offer truly high-definition image quality. Qihan believes users will feel the difference withh this latest fast-definition video. This series of optical cameras can be widely used in the financial sector, telecommunications, supermarkets, hotels, government, schools, airports, factories, public security, law enforcement and other projects that required ultra-high quality due to the various concerns experienced by commercial or industrial sites.