Let's Find That Break! Check out the Jonard Tools FPM-50S. The Jonard Tools Mini Optical Power Meter is perfect for measuring the absolute optical power and relative power loss in fiber optic cables. It also features a built-in visual fault locator, network cable tester, and remote. This power meter features the following: - Measures power using a wide variety of wavelengths from 800-1650 nm, with a mere 0.01 dB resolution - Measures 10 preset calibrated wavelengths with high precision to determ