The assembly instructions provided in the instrument design repository are intended to produce a fully functional AutoGDE system, assuming manual insertion of the GDE into the WE fixture and incorporation of that fixture into the system. The diagnostic port noted in Fig. can be attached to a pressure gauge to leak-check the system. The calibration gas can be used to validate the product detection. Upon these checks, the electrochemical operation of the cell, for example via reproduction of the data in Fig. or Fig. , is the ultimate validation of the AutoGDE build.