Handheld Fiber Optic Tester Portable Pen Type Red Light Visual Fault Locator Rechargeable Optical Cable Test Pen B3S15 15mW

Features:
Lightweight and portable for easy carrying and comfortable hold.
Longer penetration distance, stable performances and long service time.
3-gears brigtness adjustable, and there are power signal lights, pay attention to the power at any time.
With LED light convenient for dark environment operation.
2.5mm universal pen heads, detachable, easy to replace the core.