The FOLS-203 handheld optical light source delivers stable dual-wavelength laser output for testing single mode fiber in both long-distance and local networks. This compact and portable unit operates in either continuous wave (CW) or modulated mode, offering excellent stability for FTTX and general fiber network testing. When used with a compatible optical power meter, its dedicated TWIN button enables one-touch auto wavelength identification, providing a quick and accurate testing solution for single mode fibers.
