Jonard FPM-50S Mini Optical Power Meter with VFL & RJ45 Tester, -50 to +26 dBm

The Jonard FPM-50S packs three testers a fiber tech reaches for daily into one pocket-sized meter: an optical power meter, a visual fault locator, and an RJ45 network cable tester. As a power meter it measures both absolute optical power (dBm) and relative power loss (dB) from -50 all the way to +26 dBm - enough top-end headroom to read hot CATV and PON transmit levels directly - with an InGaAs detector calibrated at 10 wavelengths from 850 to 1650 nm, including the 1270 and 1577 nm XGS-PON bands, and a fine 0.01 dB resolution.

The built-in 2 mW visual fault locator earns its place the first time you need it: shoot visible red light down a fiber and breaks, macrobends, and bad connectors glow through the jacket - no separate VFL pen to lose. And when the job includes copper, the built-in remote tests RJ45-connected network cables for continuity and wiring faults, saving a second tester on the belt.

Field-practical details round it out: a backlit screen readable in dark closets and vaults, 10-minute auto-off and 120+ hours of operating time on two AAA batteries, and included FC and LC adapters so common connectors plug straight into the meter. The FC adapter accepts APC, PC, and UPC polished connectors; the LC adapter accepts PC and UPC. For a tech who wants one small instrument covering power, loss, fault location, and copper continuity, the FPM-50S is a remarkably complete package.