1. Versatile Fiber Optic Testing: Our Fiber Optic Tester Pen is designed for various testing applications, allowing you to easily identify faults and measure the power of fiber optic cables. With its adjustable red and visual fault locator function, it provides accurate and reliable results. 2. Premium Quality and Long-lasting Performance: Crafted with precision and durability in mind, our Fiber Optic Tester Pen is built to withstand daily use. The rechargeable battery ensures continuous operation, while the single mode fiber type and SC/APC connector guarantee optimal signal transmission. 3. Convenient and User-friendly Design: Featuring a compact and lightweight design, our Fiber Optic Tester Pen is easy to handle and carry. The adjustable length of 1m provides flexibility in reaching different areas, making it suitable for both indoor and outdoor use. Additionally, the built-in flash light enhances visibility in dark environments. 4. Professional-Grade Accuracy: Designed for professionals and enthusiasts alike, our Fiber Optic Tester Pen delivers accurate and precise measurements. Its adjustable power range from 5-30mW allows for detailed analysis and troubleshooting, ensuring efficient network performance. 5. Wide Range of Applications: Whether you are working in telecommunications, data centers, or network installations, our Fiber Optic Tester Pen is an essential tool. It can be used for cable continuity testing, fiber identification, and fault location, making it a versatile choice for various fiber optic projects., Manufacturer: CFWWSAQ