Doctor Fiber's OLK51 series test kit from Advanced Fiber Solutions is the complete Power Source and Light Meter solution necessary for the installer to test, trouble shoot optical fiber cable systems. These optical fiber test kits are designed to allow testing of all parameters of fiber optic networks, including output power levels from the fiber, coupled source power and attenuation loss in a cable. Plastic Optical Fiber and VSCEL test kits are also available. The POF kits have modular adapters on both the meter and the 665nm output of the source.