Welcome to our store! 1. OPTICAL CABLE MAINTENANCE: Pen-type visual fault locator is specially designed for optical cable maintenance, visually searching for fiber breaks and locating defects, intuitively and practically. 2. 50KM 50MW: Up to 50KM output distance, with an output power of over 50mW, this VFL test pen can easily penetrate optical fibers over long distances. 3. FIBER CLEANING PEN: Comes with an optical fiber end-face cleaning pen, which can be cleaned more than 800 times, has strong cleaning ability, suitable for 1.25mm LC or MU. 4. TOUCH-FREE OPERATION: No damage to the optical fiber and the sender end-face, the output power is not affected by voltage fluctuation. 5. ALUMINUM ALLOY BODY: Made of aluminum alloy, very sturdy, compact, and lightweight, easy to carry, the handle is non-slip, comfortable to grip. Item Type: Visual Fault Locator Visual Fault Locator Parameter: Material: Aluminum Alloy Output Power: >50MW Output Distance: 50KM Output Wavelength: 650±10nm Operating Temperature: 0℃ to +60℃ Storage Temperature: -20℃ to +70℃ Battery Type: 2 x 1.5V AA battery (shipped without battery) Optical Fiber End-Face Cleaning Pen Parameter: Material: Antistatic Resin Cleaning Times: More than 800 times Cleaning Capacity: 99% Application Scope: Approx. 1.25 mm/0.05 inch (LC MU) 1 x Visual Fault Locator 1 x Pen Bag 1 x Lanyard 1 x Ceramic Core 1 x Manual 1 x LC Cleaning Pen Guaranteed Satisfaction: Customers are our top priority. If you find any issues with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.