During the 18th China International Optoelectronic Exposition, Night-Vision Science &Technology Group CO., LTD(NIGHT-VISION GROUP), under China North Industries Group Corporation(NORINCO GROUP), held business negotiation with Shenzhen Lei Shen Company, about the development of PARES100's prototype machine of ambient gas monitor project, and signed market agency agreement which marked NIGHT-VISION GROUP has officially opened the civilian market in ambient gas monitor field.