The 1936-R, RoHS compliant Single Channel High Performance Optical Power and Energy Meter is one of the most sophisticated optical meters available in the market. These new instruments are born by combining the superb femtowatt level sensitivity reached by the 1931-C and the extreme versatility of 1935-C, resulting in a truly revolutionizing breed. No matter what the applications are and how demanding the measurements are, you only need one of these and Newport detectors. All compatible detectors are fully compatible with the instrument and hot-swappable; there is no need to cycle power when a different sensor has to be used.