This is a field-ready optical spectrum analyzer offering measurements of wavelength, power, and optical SNR on the different carriers of multiwavelength signals in the range 1450 to 1650 nm. Internal wavelength reference for high wavelength measurement accuracy. Fast and complete DWDM system analysis making it ideal for DWDM system installation, maintenance and troubleshooting. Easy and intuitive touchscreen operation. Can be powered by AC line, external DC, or internal battery.