JW3306 Optical Fiber Identifier is an essential installation and maintenance instrument, It can identify optical fibers without any damage by detecting the optical signals being transmitted through them so that avoid to opening the fiber at the splice point for identification and interrupting the service. JW3306 Optical Fiber Identifier detects frequency tones at 270Hz, 1KHZ, 2KHZ, when traffic is present on the fiber under test, an audible tone can be heard. In the meantime, it can identify the traffic direction that indicated by LED with illumination. Currency: Unit Price: Quantity: Delivery: