Additional Features: Fast measurement speed, up to 400 readings per second with the Keysight Agilent HP E4416A Wide dynamic range (-70 dBm to +20 dBm) Calibration factors, linearity ana temperature compensations data stored in EEPROM Excellent SWR for reducing mismatch uncertainty Accurate calibration and traceability to NIST Compatible with EPM (Agilent N1913A/ 14A, E4418B/ 19B), EPM-P (Agilent E4416A/ 17A) and P-series (Agilent N1911A/ 12A) power meters