Keysight Technologies (formerly Agilent) 8485D50MHz to 26.5GHz high sensitivity power sensor.
SWR, 1.29 at 18-26.5GHz.
Power Range -70 to -20dBm (100pW to 10uW).
Connector APC-3.5mm (m)
Diode power sensor is designed for use with power meters:
KT-435B, KT-436A, KT-437B, KT-438A
KT-E4418A, KT-E4418B, KT-E4419A, or KT-E4419B
KT-E4416A or KT-E4417A
See also KT-8487D or KT-E4413A