The 5018D from Bird is a Power 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, Operating Temperature -10 to 50 Degree C, Storage Temperature -40 to 80 Degree C. More details for 5018D can be seen below.