Open Systems Metro is an engineered electrical systems company that specializes in design, engineering, implementation, and m ... aintenance of low voltage systems. OSM is based in the Tri-state area, and is led by professionals who have been in the industry for over 30 years. OSM's scope runs from Fire alarm, to Audio visual, security, and pro sound. We are a truly a one stop shop for all your low voltage needs. read more
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