1、Extendable Pole Design: The extendable pole design allows for precise and thorough cleaning of fiber optic connectors, making the cleaning process efficient and effortless. 2、Audible Click Confirmation: An audible click sound provides confirmation of successful cleaning, ensuring reliable performance with over 800 cleaning cycles, effectively reducing the loss of fibre end face. 3、Automatic Replacement System: The automatic replacement system prevents secondary pollution and enables 180° rotation cleaning, effectively removing up to 99% of contaminants. 4、Universal Compatibility: Compatible with both male and female connectors, this cleaning pen supports 2.5mm (SC, FC, ST, E2000) connectors, ensuring wide ranging usability. 5、Wide Temperature Range: With a storage temperature range of ‑30℃ to +70℃, the cleaning pen can maintain optimal performance in various environments, ensuring reliable cleaning.