Feature: 1. OPTICAL CABLE MAINTENANCE: Pen type visual fault locator is specially designed for maintaining optical cables, which visually searches for fiber breaks and locates defects, intuitive and convenient. 2. 50KM 50MW: Up to 50KM output distance, with output power more than 50mW, this VFL test pen can easily penetrate long distance optical fibers. 3. FIBER CLEANING PEN: Come with an optical fiber end face cleaning pen, which can clean more than 800 times, has strong cleaning ability, applicable to 1.25 mm LC or MU. 4. NON CONTACT OPERATION: No damage to optical fiber and transmitter end face, the output power is not affected by voltage fluctuation. 5. ALUMINUM ALLOY BODY: Made of aluminum alloy, highly sturdy, compact and light, easy to carry, the handle is anti skid, comfortable to grip. Specification: 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: Anti Static Resin Cleaning Times: More Than 800 Times Cleaning Capacity: 99% Application Range: Approx. 1.25mm/0.05in (LC MU). Package List: 1 x Visual Fault Locator1 x Pen Pouch1 x Lanyard1 x Ceramic Core1 x Manual1 x LC Cleaning Pen