Additional Features: Display: Graphical Display, 190 x 300 points, monochrome Display Resolution: 0.0001dB/dBm, 0.01pW to 10pW Trigger: true synchronous on all channels Supports modules of the 816xxx and 815xxx series Built-in applications Graphical display GPIB Interface Parallel and serial ports The Agilent 8163A is a Lightwave Multimeter System. The Agilent 8163A is a basic measurement tool that provides flexible modular configuration and easy control of test solutions. This mainframe is used for optical component test.