Features:

• 2.5mm Universal Connector: Test for both single-mode and multi-mode ST/SC/FC Interface Fiber Optic cables
• Red light output distance 10KM, Replaceable Ceramic core Design to prolong the lifetime
• Crash-proof and Dust-proof Design for Metal Head. It is designed with stainless steel head to prevent crash and dust, and the case ground design prevents ESD damage efficiently
• This Visual Fault Locator will emit a 650nm bright red light which has strong Penetrating power, so that the leakage light at fault area is clearly visible