Features: 1. It features a red design, a universal connector and an accurate measurement. 2. It locates fibers, finds faults, verifies continuity and polarity. 3. It is wide used in telecommunications engineering and maintenance, CATV engineering and maintenance, cabling system and other fiber-optic project. 4. This visual fault locator can operates either in continuous wave or pulsed mode. 5. Connectors: 1.25 mm connector FC (or) 2.5 mm universal connector Specifications: Laser Output: 30 mW Laser Wavelength: 650 nm Laser Distance: up to 30 km Fiber Applications: singlemode / multimode Connectors: 1.25 mm connector FC (or) 2.5 mm universal connector Features: Continuous Wave and Pulsed Mode, constant output power Power: 2PCS AA batteries (not included) Shell Material: Aluminum Size: Approx. 17.5 x 2.6 cm / 6.89 x 1.02inch Package Included: 1 x Visual Fault Locator 1 x Bag 1 x Lanyard .