The CSM 3218 from Microphase Corporation is a RF Detector with Bias Current 150 µA, Frequency 2 to 18 GHz, Max Input Power 20 to 26 dBm, Frequency Flatness ±1 dB, Voltage Sensitivity 1800 mV/mW. Tags: Connectorized, Diode Detector. More details for CSM 3218 can be seen below.