Keysight E8486A 60-90 GHz Waveguide Power Sensor WR-12 -30 to +20 dBmCondition: Used Good working condition, as pictured. From the manufacturer: Designed with a WR 12 flange connector, the E8486A makes precise and direct waveguide measurements in the E band frequency range and is compatible with most Keysight power meters. Frequency range 60 to 90 GHz Accurate average power measurements over 30 to +20 dBm Excellent SWR for reducing mismatch uncertainty Diode power sensing element 50 MHz calibration port Accurate