Pen-type Fiber Optic Tester 1.Operates either in CW or Pulsed mode with constant output power 2.Easy to use Pen-type Visual Fault ... networks. It finds breakpoints, poor connections, bending or cracking in fiber optic cables; and it can find faults in an OTDR dead ... Package ModelIncludesBOB-VFL650-5Main unit, User Manual,Individual packing Pen-type Fiber Optic Tester