We introduce the waveform capture device (WCD). a flexible measurement system capable of recording complex digital signals on trillionth-of-a-second (ps) time scales. The WCD is implemented via modular code on an off-the-shelf field-programmable gate-array (FPGA. Intel/Altera Cyclone V). https://allfixelectricales.shop/product-category/mains-terminal-strip/