This W G JDSU OLP-15B 800-1700nm Optical Power Meter is in great condition and is guaranteed to be functional. These kits item came from a test measurement equipment rental/lease company that had surplus lightly used equipment. Please feel free to contact us with any questions. INCLUDES: OLP-15B Optical Power Meter RS-232 Communication Cable *Listing does not include 9V 1.9A power supply (reflected in price)* The OLP-1XB series of Optical Power Meters are especially suitable for applications involving the installation, maintenance or repair of fiber optics networks, as they are both compact and easy to use. They can be used to make power and loss measurements in the wavelength range from 800 to 1700 nm. The main areas of application for the individual instruments are determined by the required measurement range and accuracy. The OLP-15B and OLP-18B are specially suited to measuring high power levels, such as those found in CATV systems, optical amplifiers (e.g. EDFA) and high-power lasers. The upper display limit for the OLP-15B is +20 dBm and for the OLP-18B +26 dBm. The lower limit of below -60 dBm means that the instruments are suitable for practically any application.