The 25114 from Flann Microwave is a Waveguide Attenuator with Frequency 49.9 to 75.8 GHz, Average Power 0.15 W, Attenuation 0 to 50 dB, Insertion Loss 1 dB. Tags: Rotary Attenuator, Direct Reading Attenuator. More details for 25114 can be seen below.