Sentry GSI is a fast depressurization system provider that specializes in transformer fire and explosion prevention. Our mission is to provide the most innovative, proactive, reliable and efficient system in the world wide power industry market. We are committed to: Offering the fastest, most reliable and affordable system on the market Preventing potential loss of life, injury, down time, lost revenue, replacement of equipment, EPA fines, clean up and public image Addressing the most critical industry challenges Building a safer world wide power industry. Providing our customers with exceptional service