The RPD-5501 from RF Bay is a RF Detector with Frequency 50 MHz to 5 GHz, Max Input Power 15 dBm, Max Input Power 0.031 W, Dynamic Range 27 to 30 dB, Supply Voltage 4.4 to 5.5 V. Tags: Module with Connectors, Log Detector. More details for RPD-5501 can be seen below.