The T1DE1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1.805 to 1.88 GHz, Average Power 40 W, Average Power Forward 40 W, Insertion Loss 0.4 dB, Isolation 50 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1DE1 can be seen below.