The WR12 Lg Circuit from Sector Microwave Industries is a Waveguide Switch with Frequency 60 to 90 GHz, Insertion Loss 0.4 dB, Isolation 50 dB, Supply Voltage -54 to 32 V, Current 0.5 to 1.5 A. Tags: Motorized. More details for WR12 Lg Circuit can be seen below.