The Hofmann Voltameter is a special piece of glassware which allows electrolysis of water, and analysis of the products of the electrolysis. It consists of two burettes turned upside-down, connected at the bottom by a tube, which is fed by a third tube in the middle which runs parallel to the burettes. This central tube allows the apparatus to be filled. The ends of the two burettes are open to allow bungs which hold electrodes to be inserted.
