Audits Beijing instrument Co., Ltd, is a mainly engaged in the modernization of scientific instruments and research equipment. Products include vacuum equipment, space simulation device, the sun simulator, solar battery test equipment, monochromator spectrometer, xenon lamp deuterium tungsten lamp and other kinds of scientific research level, electric light source, optical isolation platform rotation, translation machines and other precision displacement optical fiber grating filters and other optical components and so on several big series more than hundred models, and can undertake large optical testing project, customized technical services for the majority of users with R&D, widely used in aerospace, military industry, environmental protection, education and scientific research, and measurement calibration and examination from all walks of life.