The DT0520 from Herotek is a RF Detector with Frequency 0.5 to 2 GHz, Max Input Power -20 to 17 dBm, TSS -50 dBm, Frequency Flatness 0.7 dB, Voltage Sensitivity 800 mV/mW. Tags: Connectorized, Diode Detector. More details for DT0520 can be seen below.