Mini 4‑in‑1 Multifunction Fiber Optical Power Meter — Portable VFL Cable Tester (5KM 15KM 30 KM)

Compact, portable 4‑in‑1 fiber optical power meter with built‑in visual fault locator for 5KM 15KM 30 KM testing. Designed for accurate optical measurements: dynamic range 80db with a measurement error less than ±.2db. Supports fc/sc/st interfaces for broad connector compatibility. Power comes from a built‑in lithium battery with Usb charging for faster, safer charging and extended runtime. Strong red light source (VFL) included — short press VFL to switch VFL output mode. For cable diagnostics, long press to turn cabletest mode on or off. An integrated LED light is also provided; short press to toggle the LED on/off.