Keysight Technologies (formerly Agilent) 8485A50MHz to 26.5GHz 100mW power sensor.
SWR, 1.25 at 18 to 26.5GHz.
Power Range -30 to +20 dBm (1 uW to 100 mW)
Connector APC-3.5mm (m)
Thermocouple 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-E4413A or KT-N8485A/100.