The DHM2653B from Herotek is a RF Detector with Frequency 10 MHz to 26.5 GHz, Max Input Power -50 to 20 dBm, Dynamic Range 70 dB, Frequency Flatness ±0.5 to 1 dB, Voltage Sensitivity 1000 mV/ mW. Tags: Connectorized, Diode Detector. More details for DHM2653B can be seen below.