Feature 1[Fiber Fault Detection] Driven by a constant current source, this visual fault locator efficiently detects fiber faults by entering multimode and single mode fibers when connected to the optical interface. 2[Multiple Power Supply Options] Support various power supply methods such as alkaline batteries, power banks, computers, adapters, and can batteries. 3[Illumination Function] This fiber visual fault tester facilitates line inspection and construction in dark environments such as outdoor settings, data centers, and night time operations. 4[Ergonomic Design] This visual fault locator is lightweight, ergonomic designed, comfortable to use, user friendly, ensuring ease of handling. 5[Wide Usage] This is an indispensable tool in fiber engineering construction, fiber network maintenance, and optical component production and research.Item Type: Visual Fault LocatorMaterial: ABSTest Distance: 30KMWorking Current: 170mABattery Life: >5hGear Output: 3 adjustable gearsOutput Wavelength: 650nmInterface Type: 2.5mm universal adapterPower Type: AAA battery x 2 (shipped without battery)Storage Temperature: -40 to +85Working Temperature: -20 to +60 (without condensation) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Visual Fault Locator1 x Ceramic Sleeve1 x User Manual