Features 1、OPTICAL CABLE MAINTENANCE: Fiber visual fault locator is designed to test and maintain fiber optic cables and lines effectively. 2、LOCATE CABLE DEFECTS: Fiber light test pen helps locate cable faults and visually search fiber breaks with ease, with an output distance of up to 30KM. 3、NON CONTACT: Non contact connection method ensures that the end faces of the optical fiber and transmitter are undamaged. 4、STABLE POWER: Fiber visual fault tester gives stable power output, unaffected by voltage fluctuations, ensuring a reliable tool. 5、PORTABLE AND ENERGY SAVING: Fiber optic cable tester is lightweight, compact, and easy to carry, perfect for daily maintenance work. Specification Item Type: Visual Fault Locator Material: Aluminum Alloy Model: AUA 30 Fiber Optic Adapter: Universal Connector Output Distance: 30KM Output Wavelength: 650±10nm Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: Requires AA Battery x 2 (Shipped Without Battery) Package List 1 x Visual Fault Locator 1 x User Manual 1 x Ceramic Core 1 x Adapter 1 x Pen Bag 1 x Lanyard