TFN is a Chinese brand created in 2015, with R&D and production capabilities. The brand products are mainly used in electric power, railroad, telecom operators, universities and research institutes, energy and other industries, providing comprehensive equipment and solutions with high competitiveness.TFN brand is a leading brand in China engaged in optical communication testing, Ethernet and data testing, radio testing, with high visibility and popularity in railroad, electric power, mining, oil and other industries. We specialize in these products:1.Optical fiber fusion splicer2.Optical time domain reflectometer (OTDR)3.Spectrum analyzer4.Ethernet tester5.Antenna VSWR tester6.Handheld signal synthesis analyzer7.Long range laser rangefinder/telescope/night vision8. Industrial testing equipment