Welcome to Astro-Med Canada, Inc. Over 70 years of providing Reliability - Quality Service to the Neurophysiological Community. Grass Technologies, An Astro-Med Inc. Product Group manufactures recording instrumentation including Polygraphs, Stimulators, Amplifiers, Amplifier Systems, Neurodata Acquisition Data and Analysis Software, EEGs, Polysomnographs, Long-term Monitoring for research and clinical applications. A complete line transducers, electrodes, and accessories is also available. Grasstechnologies.ca~Site InfoWhoisTrace RouteRBL Check