Keysight 8487A Power Sensor, 50 MHz to 50 GHz

The Agilent 8487A thermocouple power sensor is designed for use with the EPM series, EPM-P series, 70100A, E1416A and the discontinued 43x power meters, and provides extraordinary accuracy and stability. The 8487A power sensor gives you extremely low SWR even at mm-wave frequencies, and is traceable to the U.S. National Institute of Standards and Technology (NIST). This calibration eliminates the uncertainties due to temperature changes and the variance in making measurements with different meter/sensor combinations.