Keysight 8481D diode power sensor measures average power over the frequency range 50 MHz to 18 GHz and power range -70 to -20 dBm (50 dB dynamic range).

Keysight 11708A 30 dB attenuator is supplied with 8480 series power sensors with the "D" suffix, for calibration with the power meter 0 dBm, 50 MHz reference.