Features Versatile Operating Modes: The Visual Fault Locator (VFL) offers three distinct operational modes for increased flexibility during fiber optic testing - continuous operation, rapid pulsing, and slow pulsing, thereby streamlining the troubleshooting process. Universal Connectivity: Equipped with a 2.5mm universal connector, the visual fault locator seamlessly interfaces with the most common fiber connectors - FC, SC, and ST - and operates efficiently within a wavelength range of 650 ± 10nm. High-Performance Red Light Emission: The VFL utilizes a red light source to achieve greater penetration distances and maintain consistent performance levels. Additionally, visual fault locator features a detachable metal pen tip, which facilitates the convenient replacement of the ceramic core when necessary. Durable Construction: Crafted from high-quality aluminum alloy, the pen-style VFL is both lightweight and robust, making it an ideal tool for fieldwork and ensuring it can withstand the rigors of outdoor use. Advanced Protection and Ease: The visual fault locator incorporates multiple static protection measures alongside a protective device for the optical port, culminating in a user-friendly experience that emphasizes ease of use and promotes operational efficiency. Description: The Visual Fault Locator (VFL) is a versatile tool with three operation modes—continuous, rapid pulsing, and slow pulsing—for efficient fiber optic testing. It's compatible with common connectors (FC, SC, ST) through a 2.5mm universal connector and operates in the 650 ± 10nm wavelength range. It features a high-performance red light for greater distance, a replaceable metal pen tip, and is built from durable aluminum alloy making it lightweight and suitable for field use. The VFL ensures user safety with static protection and ease of use with a protective optical port device. Specification: Item Type: Visual Fault Locator Material: Aluminum alloy Battery: 2 x 1.5V AAA battery, shipped without battery. Application: For optical fiber communication detection. Operating Wavelength: 650 ± 10nm Package List:1 x Visual Fault Locator 1 x User Manual Package List 1 x Visual Fault Locator 1 x User Manual