The CSM 2550 from Microphase Corporation is a RF Detector with Bias Current 150 µA, Frequency 0.5 to 5 GHz, Max Input Power 20 to 26 dBm, Frequency Flatness ±0.5 dB, Voltage Sensitivity 2000 mV/mW. Tags: Connectorized, Diode Detector. More details for CSM 2550 can be seen below.