The DHM040BB from Herotek is a RF Detector with Frequency 100 KHz to 4 GHz, Max Input Power -50 to 20 dBm, Dynamic Range 70 dB, Frequency Flatness ±0.1 to 0.3 dB, Voltage Sensitivity 1000 mV/ mW. Tags: Connectorized, Diode Detector. More details for DHM040BB can be seen below.