Visual Fault Locator Network Tester - 30mW 30KM VFL Kit with Single Mode 9/125um FC Male to LC Female Adapter, Red Light Fiber Laser Pen for Fiber Optic Cable Test

"Next-Gen Visual Fault Locator 30mW 30km Warm Tips In general, the higher the temperature, the shorter the laser lifespan.

Therefore, it is best to avoid working in high temperature environments when using lasers To prevent battery leakage that can cause aluminum parts to oxidize and lose conductivity, it's important to remove the battery when not in use When operating the laser, ensure that the fiber head is properly cleaned If the light source is not being used, be sure to cover it with a dust cap to prevent dust from entering It has a compact and portable design, with a visual fault locator that makes it easy to check for faults in optical fibers"