Welcome to our store! Pinpoint Fiber Breaks: This visual fault locator is specially designed for optical cable maintenance, visually searching for fiber breaks and locating defects, intuitively and conveniently. 50KM 50mW Test Pen: The output distance of this VFL test pen is up to 50 km, with an output power of more than 50 mW, easily penetrating long-distance optical fibers. Fiber Cleaning Pen: Equipped with an optical fiber cleaning pen, which can clean more than 800 times, has a strong cleaning ability, and is applicable to 1.25 mm LC or MU connectors. Non-Contact Operation: The test pen causes no damage to the optical fiber or the end face of the transmitter, and the output power is not affected by voltage fluctuations. Aluminum Alloy Body: The pen body is made of aluminum alloy, very robust, compact and lightweight, easy to carry, and the handle is non-slip for a comfortable grip. Item Type: Visual Fault Locator Red Light Pen Parameter: Material: Aluminum Alloy Output Power: >50MW Output Distance: 50 km Output Wavelength: 650±10nm Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: 2 x 1.5 V AA Battery (Not Included) Parameter for Optical Fiber End Cleaning Pen: Material: Anti-static Resin Cleaning Times: More than 800 times Cleaning Capacity: 99 % Application Range: Approx. 1.25 mm/0.05in (LC MU) Includes: 1 x Visual Fault Locator 1 x Pen Pocket 1 x Lanyard 1 x Ceramic Core 1 x Manual 1 x LC Cleaning Pen Customer satisfaction is our top priority. If you encounter any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.