Ideal networks fibermaster fibre optic power meter and light source kits ideal networks 33 931 a fibre optic test kit comprising the fibermaster power meter and a four wavelength mmsm light sourcethe fibermaster is a power meter that can provide measurement of fibre optic power in both mw and dbm allowing network managers to quickly test and troubleshoot active lans an automatic calibration feature enables easy measurement of cabling loss by storing reference power from any light source