... Single Mode and Multimode fiber optic cable systems. The ST800H optical power meter defines a new industry standard for installing, testing, and maintaining ... , 1300nm, 1310nm, 1550nm, 1490nmPower testing range (dBm)-50~+ 26 or -70 ~+10 Uncertainty±5%Resolution Linearity: 0.1% Logarithm: 0.01dBmGeneral ... ~+26FC, ST, SCST800H-B-50~+26FC, ST, SC, LCST800H-C-70~+10FC, ST, SCST800H-D-70~+10FC, ST, SC, LC