Laser Source TW3104 is an essential instrument for optical network installation, trouble shooting and maintenance which can be used with an optical power meter for measuring optical loss in single-mode or multi-mode fiber cables. TW3104 Laser Source is the earliest light source model in Techwin. It features compact size, high output power, stable output power and excellent wavelength stability . Features Provides 1~2 wavelengths output and wavelengths can be optional according to customers’ needs High stability of the output power Backlight LCD display supports night operation Compact size, easy operation ApplicationsMaintenance in Telecom Maintenance CATV Test Lab of optical fibers Other Fiber Optic Measurements