The PROLITE-67 is an instrument to measure simultaneously and in a selective way the three wavelengths used in fiberoptics. Thanks to this feature, you can certify any installation according to the new telecommunications policy. Connecting the fibre cable that comes from the distribution centre to the OLT plug and the fibre cable that goes to the user to the ONT plug, it takes measures without interrupting the service. It has a Visual Fault Locator, which emits a visible laser light (continuous or intermittent) that allows the user to locate cuts or breaks, identify fibres, etc.