The 4043E from Bird is a RF Power Meter & Sensor with Frequency 118 to 940 MHz, Max Input Power 2.5 to 50 W (Raflected Range), Power Range 43.9 to 56.9 dBm, Insertion Loss 0.2 dB, Power Range Watt 25 to 500 W. Tags: Power Sensor. More details for 4043E can be seen below.