





🚀 Master Your Fiber Network Like a Pro—No Signal Left Behind!
The YD-3309D Live Optical Fiber Identifier combines signal direction detection, a built-in Visual Fault Locator with 10-15km range, and a versatile Optical Power Meter supporting six wavelengths (-50 to +26dB). Its universal 2.5mm connector and rugged metal gripper fit multiple fiber sizes without adapters. Lightweight and equipped with an LED color screen, it’s the all-in-one FTTH tool designed for fast, accurate fiber diagnostics.

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