Features 1、VISUAL FAULT TESTER: This tester is designed for maintaining optical cables, with an output distance of 5km, ensuring a wide applications. 2、FAULT LOCATION: This fiber visual fault tester can be used for precise locating defects on cables and visually searching for fiber breaks. 3、NON CONTACT CONNECTION: Non destructive to the fiber and transmitter end face with a non contact connection. 4、STABLE OUTPUT POWER: The fiber light tester outputs a stable power, which is not affected by voltage fluctuations. 5、LIGHTWEIGHT CONSTRUCTION: Made from aluminum alloy, this pen type fiber fault tester is small in size and lightweight, easy to carry and use. Specification Item Type: Fiber Visual Fault Tester Material: Aluminum alloy Model: AUA GC5 Fiber Optic Adapter: Universal connector Output Distance: 5KM Output Wavelength: 650 ±10nm Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: Polymer lithium battery, capacity 400mAh (built in) Color: Gold Package List 1 x Fiber Visual Fault Tester 1 x User Manual 1 x USB Cable 1 x Ceramic Core