Laser Source TW3108 Is designed specially aim at users with high requirements. With featuers of durable structure, large LCD display with backlight and friendly operation interface, the TW3108 Laser Source advanced stability Handheld Optical Light Source provides a lot of convenience for your field work. High stability of output power and quite stable output wavelength, it is an ideal instrument for optical network installation, trouble shooting, maintenance and other optical fiber related systems. Features? Provides dual-wavelengths output and wavelengths can be optional according to customer’s needs ? CW, 270Hz,1KHz,2KHz modulation frequency output ? High stability of the output power ? Stable output wavelength ? Backlight LCD display supports night operation ? Large LCD,easy operation ApplicationsMaintenance in Telecom Maintenance CATV Test Lab of optical fibers Other Fiber Optic Measurements