2Pcs Fiber Optic Visual Fault Locator 30Km Vfl Fiber Optic Tester, Purple Switch Product Details ?Ultra Long Distance Test?The Fiber Optic Visual Fault Locator (the fiber optical fault detector) has a strong source output power, which can detect fiber patch cord faults within 30 kilometers. ?Functions? The Fiber Optic Visual Fault Locator can detect fiber connectivity and locate fiber faults, such as fiber breaks or bends. In addition, it also has functions such as fault detection in the OTDR blind zone, end-to-end fiber identification, and mechanical continuous point optimization. (Package does not include battery) ?Advantage?The fiber optic tester is perfect for field tests because of its multiple functions such as constant output power, multi-interface adaptation, low battery warning, long battery life, and long-distance detection. ?Application?2.5mm Universal Connector - the connector of the detector is compatibly designed for ST, SC, FC, LC interferes both in circle and square shape of different fiber optic cables. It can be used in telecommunication/CATV engineering and maintenance, integrated wiring construction and maintenance, optical device production and research and other optical fiber engineering. ?Dust-proof and Non-slip Design?The dust cover design keeps the Locator clean to protect the accuracy of the test; the aluminium body purchases a metal mesh design to increase friction and prevent it from falling out of yourhand during use. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.