Profile: Barrett Engineering is a provider of custom electronic design, fabrication, assembly, and product testing for industrial , environmental, & commercial products. Our embedded controller is an electronic equipment that is part of a larger system whose primary purpose is not control oriented. For example, weighing systems, high-speed sheet metal fabrication equipment, and four-color printing presses have little in common, but each is run by a customized controller which is an integral part of the total system. Our EMG II electromyography amplifier is an internally powered high gain electromyography (EMG) unit, which amplifies the extracellular potentials of muscles when an electrode needle is inserted into the muscle. The electric signals are detected by the tip of the electrode needle. The amplifier magnifies the electrical impulses and makes them audible through the unit's speaker or earphone. This device is specifically designed to facilitate the therapeutic injection of Botox®.