The CTM 3818 from Microphase Corporation is a RF Detector with Frequency 8 to 18 GHz, Max Input Power 17 dBm, TSS -50 dBm, Frequency Flatness ±0.7 dB, Voltage Sensitivity 800 mV/mW. Tags: Connectorized, Diode Detector. More details for CTM 3818 can be seen below.