OWL OPTICAL LENGTH TESTER VIDEOS
Q: How do I replace the battery in my OWL optical length tester? Video #: T1023

Q: How do I clean the ports on my OWL optical length tester? Video #: T1051

Q: How do I measure the length of optical fibers?
Q: What is the difference between reflective and "round robin" length measurement?
Video #: T1052