OWL OCM-C C-band Optical Channel Monitor offers quick and accurate measurements of ITU DWDM grid wavelengths with 50GHz and 100GHz spacing. Featues a 2.8" LCD display that can rotate between portrait and landscape for differed viewing detail. The OWL OCM C C-band Optical Channel Monitor also includes a re-chargeable Lithium Polymer battery and USB interface for data transfer.