The Cleerline Fiber Optic Testing, Troubleshooting and Certification Kit provides optical link testing, signal qualification and fiber certification for single-mode and multimode cables. Easy-to-use and powerful, the kit also stores up to 1,000 test records for PC download and printout. The Cleerline kit includes an optical power meter and an optical light source allowing technicians and installers to verify a wide range of signal wavelengths while calculating optical power loss in decibels (dB). The kit also certifies fiber optic runs and connections in accordance with TIA-568-C standards. For added versatility, the kit also supports copper-based twisted pair testing via a built-in RJ45 sequencer and separate RJ45 tone probe. A built-in visual fault locator provides quick connector testing and cable tracing, and a built-in flashlight streamlines work in dark and cramped spaces. In addition to the power meter, optical light source and RJ45 tone probe, the kit also includes reference cables, couplers, adapters and cleaning pens packed in a durable plastic case. Used properly, the Fiber Optic Testing, Troubleshooting and Certification Kit is an essential tool for ensuring fiber cable and connector integrity, optical connection cleanliness and overall connection loss.