The DG2640 from Clear Microwave, Inc is a RF Detector with Frequency 26 to 40 GHz, Max Input Power 20 dBm, TSS -45 dBm, Frequency Flatness ±1.2 dB, Voltage Sensitivity 600 mV/mW. Tags: Module with Connectors, Diode Detector. More details for DG2640 can be seen below.