The IPM-165 from InnoSenT is a Radar Sensor with Frequency 24.05 to 24.25 GHz, Output Power 16 to 20 dBm, Antenna Gain 9.5 dB, Supply Current 18 to 40 mA, Supply Voltage 3.2 to 3.4 V. Tags: SMT, Transceiver. More details for IPM-165 can be seen below.