Item Type: Visual Fault Locator_x000D_Material: Aluminum_x000D_Universal Interface: 2.5mm (FC SC ST)_x000D_Output Wavelength: 650nm 10nm_x000D_Output Optical Power: >60MW_x000D_Optical Fiber Adapter: Universal connector_x000D_Output Distance: 60KM_x000D_Operating Temperature: 0 to +60_x000D_Storage temperature: -20 to +70_x000D_Battery Type: 2 x 1.5V AA battery (shipped without battery) 1Fiber Optic Test Tool: Specially designed for optical cables and lines maintenance, this VFL pen could locate defects on cables, visually search for fiber breaks. 2Non Contact: Adopt non contact connection way, there is no loss for optical fiber and transmitter end face, and the output power is not affected by voltage fluctuation. 3Wide Application: With 2.5mm universal interface, ensures a wide range of applications, the output distance is up to 60km, highly practical. 4Stable Output: This fiber optic source tester is energy saving, could output power stably, is a good tool for optical fiber testing. 5Easy Carrying: The fiber optic tester is compact size, light weight, comes with pen bag and lanyard, more convenient for carrying around.1 x_x000D__x000D_VisualFaultLocator 1 x Pen Bag 1 x Lanyard 1 x Manual Do not aim at eyes.