The STD-08SF-NI from ERAVANT is a RF Detector with Frequency 90 to 140 GHz, Max Input Power -20 to 17 dBm, Voltage Sensitivity 300 mV/mW, Video Bandwidth 10 MHz, VSWR 1.40:1. Tags: Module with Connectors, Waveguide, Diode Detector. More details for STD-08SF-NI can be seen below.
