Welcome to our store! 1. WORKING PRINCIPLE: Powered by a constant power source, connected to the optical interface to enter multimode and single mode fiber to realize fiber fault detection. 2. PORTABLE DESIGN: The fiber optic fault locator adopts an ergonomic design, making it comfortable to hold, lightweight, and portable, convenient to use anytime and anywhere. 3. POWER SUPPLY: Supports multiple power supply methods such as alkaline battery, power bank, computer, and adapter, which is convenient and practical. 4. LIGHTING FUNCTION: The fiber fault detector has a lighting function, convenient for checking lines and constructing in the field, machine rooms, at night, and other dark environments. 5. APPLICABLE FIELDS: This portable fiber detector is widely used in fiber construction, fiber optic network maintenance, optical device production and research, etc. Item Type: Fiber Fault Locator Test Distance: 20 km Working Current: ≤160mA Battery Life: >5h Gear Output: 3 gear adjustment Output Wavelength: 650nm Interface Type: 2.5mm universal adapter Power Supply: 3.7V 900mAh battery Storage Temperature: -40-85 ℃ Working Temperature: -20-60℃ (no condensation) 1 x Fiber Fault Locator 1 x Ceramic Sleeve 1 x User Manual Customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.