The technology is here today – now available to non-engineers! This guide contains complete, easy-to-follow illustrated instructions for building multiple types of proton exchange membrane (PEM) fuel cells, along with templates for 6 PEM fuel cell types, including convection fuel cells and oxygen-hydrogen fuel cells. Designs include monolithic and stack configurations. Two different low-tech fuel cell construction methods are covered: one requiring a bandsaw and drill press, and the other using only basic hand tools. Anyone with minimal skills and tools can produce high-quality fuel cells from readily available materials. Information on material suppliers is included. Electrochemical device with no pollution and no hazardous emissions. Fine workmanship, compact size, portable and easy to use. Color: Material: Plastic Package Contents: 1 x PEM Hydrogen Fuel Cell Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.