Features 1、Fiber Fault Locator: This visual fault locator is specially designed for maintaining fiber optic cables and wiring, effectively locate defects on cables. 2、Non Contact: With non contact connection, the meter will not damage the fiber and transmitter, and the output power will not affected by voltage fluctuations. 3、Lightweight and Portable: The fiber optic pen is small in size and light in weight, energy saving greatly, can easy to carry for outdoor projects. 4、Stable Output: The fiber optic pen has stable output power, the output distance is up to 10km, which is an important tool for fiber testing. 5、Aluminum Alloy Housing: This fiber test pen adopts excellent aluminum alloy shell, which has high strength, anti drop, sturdy and durable. Specification Item Type: Fiber Visual Fault Locator Material: Aluminum Alloy Output Optical Power: >10MW Output Distance: 10km Output Wavelength: 650±10nm Fiber Adapter: 2.5mm connector Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: 2 x 1.5V AA battery (delivered without battery) Package List 1 x Fiber Visual Fault Locator 1 x Pen Bag 1 x Lanyard 1 x Ceramic Core 1 x Manual