High accuracy, wide dynamic range and high power measurement capability (up to 26 dBm) Memory capacity of 1000 data items; enables data transfer to a PC via USB connection User-configurable pass/fail thresholds with LED indicator Over 40 calibrated wavelengths, and Hold Min/Max Power function Rechargeable batteries Error-free, time-saving test features: automatic wavelength switching, no offset nulling Low cost of ownership: three-year warranty and recommended calibration interval.