The T1ZC1 from Sonoma Scientific is a RF & Microwave Isolator with Frequency 1 to 2 GHz, Average Power 200 W, Average Power Forward 200 W, Insertion Loss 0.8 dB, Isolation 15 dB. Tags: Module with Connectors, Coaxial Isolator. More details for T1ZC1 can be seen below.