Fiber Optic Cable Tester 30KMChecker Pen-Type Fiber Optical Test Pen Visual Fault Locator for FC/SC/ST Universial Connector

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This is great with the extra button to turn on and off. My battery would always die when using the other types because I think tsa would mess with it and leave it on or it would shift and turn on accidentally. Not anymore though. And multiple flashes make it easy to use more than two when needed to save time when working alone.

1st one of these I received was defective. I filled out the return information and had a new one in no time. Excellent service!!!!! New one works great and already paid for itself the first two days I had it.

Item arrived a few days later than expected, but the laser intensity is excellent!