The Optical Fiber Clean Pen is an essential cleaning tool. The STS821-25 is designed to work specifically with female fiber connectors. This instrument cleans the ferrule faces, removing dust, oil, and other debris without nicking or scratching the face. The clean pen is specially designed to clean the APC and UPC connectors. The operation of a cleaning pen is easy and exact. Otherwise, it will keep the low cost for a long time. Its working life is more than 800 times.

Regular cleaning of fiber optic connectors is essential for maintaining optimal performance and preventing signal loss or degradation. Using a fiber optic cleaning pen helps ensure connectors remain clean and free of contaminants, minimizing signal interference or attenuation risk.