DTX-CLT CertiFiber® Optical Loss Test Set

All mainframe and kit models are retired. Accessories and support are still available. Learn more about the next generation CertiFiber® Pro Optical Loss Test Set.


Because present-day enterprise data networks increasingly rely on fiber optic cabling, it is more important than ever for installers and network owners to use Optical Loss Test Sets (OLTS) certify and document that their fiber links meet established industry standards to protect against network downtime and lost revenue.

The Fluke Networks DTX-CLT CertiFiber® OLTS enables you to easily and accurately certify two fibers concurrently over two wavelengths according to custom requirements or established industry specifications. Quickly and efficiently conduct troubleshooting with a convenient integrated Visual Fault Locator (VFL).

The DTX-CLT CertiFiber OLTS does not certify copper cable.