The 5018D from Bird is a RF Power Meter & Sensor with Frequency 150 MHz to 4.0 GHz, Power Range 20 to 44 dBm (100 mW - 25 Watts Avg. 60 Watts Peak), Peak Power Range 47.78 dBm. Tags: Inline Power Meter, Power Meter. More details for 5018D can be seen below.