The STD-12SF-NI from ERAVANT is a RF Detector with Frequency 60 to 90 GHz, Max Input Power -50 to -20 dBm, Voltage Sensitivity 900 mV/mW, Video Bandwidth 10 MHz, VSWR 1.40:1. Tags: Module with Connectors, Waveguide, Diode Detector. More details for STD-12SF-NI can be seen below.