Constant and stable power output Operates in either pulse or pulse mode Pocket-sized, easy to use Product Description It is specially designed for field personnel who need an efficient and economical tool for fiber tracing, fiber routing and continuity checking in an optical network during and after installation. It includes: find the break point, bad connections, bend or crack fiber optic cables. Find OTDR faults. Type: VFL. Center wavelength: 650 10. Optical connector: FC universal connector for connectors , FC (male) / LC (female) converter optional on customer requests. Operational model: available both and pulse (1 Hz). Power supply: 2 batteries AAA alkaline (not included). Operating temperature (C): -10 ~ +45C. Storage temperature: -25 ~ +70C. Weight: 56 g. Applications: Telecommunications engineering and maintenance Cable engineering and maintenance. Cabling system. Other fiber optic projects. Package includes: 1 fiber optic cable visual fault locator. About service: If you have any questions about the product, please feel free to contact us, we will provide you with our best service and try our best to solve the problem you have encountered. countered.