... and easy-to-use testing instruments for optical fi Optical power meter RNO3035RNO3035 optical power meters is compact, lightweight and easy ... Laser Sources, can be used to identify optical fiber, measure optical attenuation, verify continuity and evaluate fiber link ... battery lifeTechnical Specifications: Model RNO3035Calibrated Wavelength (nm)850,1300,1310,1490,1550,1625Meas. Range (dBm)-70~+10-50~ ...