Intelligent Testing: This visual fault locator can test breaks and bends in optical fibers, providing end-to-end fiber identification. Wide Applicability: Enables broad application in telecommunications, CATV engineering and maintenance, integrated cabling construction, etc. Reliable Operation: Non-contact connection ensures no damage, and the output power is unlikely to be affected by voltage fluctuations. Easier to Use: Simple operation along with a 5km output distance greatly simplifies testing and significantly improves work efficiency. Easy to Carry: The lightweight and compact red light pen is powered by 2 AA batteries (not included), making it easy to carry and store. Specification: Item Type: Visual Fault Locator Model: HT-5 Material: Aluminum Output Wavelength: 650nm ± 10nm Optical Output Power: > 5MW Fiber Optic Adapter: Universal Connector Output Distance: Approx. 5000m / 16404.2 ft Operating Temperature: 0 - +60℃ Storage Temperature: -20 - +70℃ Battery Type: 2 x 1.5V AA Battery (not included) Package List: 1 x Visual Fault Locator 1 x Pen Pocket 1 x Lanyard 1 x User Manual