Fiber optic tester that performs link verification and automated fault tracking in seconds. Empowering frontline technicians to explore further and do more. The Optical Explorer displays fiber link KPIs (length, loss, ORL and power) in under 3 seconds through single-ended testing and includes Flash Advisor, Fault Explorer and Link Mapper functions. Built-in power checker and light source, EXFO Advisor 5-star rating, and click-out SC/APC connector options are available on PRO models.