The SMD0218 from Fairview Microwave is a RF Detector with Frequency 2 to 8 GHz, Max Input Power 20 dBm, Dynamic Range 50 dB, Frequency Flatness ±0.4 to ±0.5 dB, Voltage Sensitivity 500 mV/mW. Tags: Connectorized, Diode Detector. More details for SMD0218 can be seen below.