The STZ 200 from Crane Aerospace & Electronics is a RF Detector with Frequency 0.01 to 26.5 GHz, Dynamic Range ±20 dBm, VSWR 1.50:1, 2.00:1, Operating Temperature -55 to 125 Degree C. Tags: Connectorized, Power Detector. More details for STZ 200 can be seen below.