... 1. Brief introductionWith a wide range of functions, ST800K optical power meter is a powerful tool for use in fiber-optic ... choice for a wide range of field applications.ST800K Optical Power Meter can test optical power within the range of 800~1700nm wave length. ... typeInGaAsStandard wavelength(nm)850, 1300, 1310, 1490, 1550, 1625Power testing range (dBm)-50~+26 or -70~+3 Uncertainty±5%Resolution ...