All the way back in 1963, Sentry Systems Inc. started in Duluth, Minnesota
. 7 years later in 1970, Hubert Don Olinger bought the company and it's very few accounts. The company then moved from Duluth to the Hugo, White Bear Lake area. Over the following years, central stations were set up to their own monitoring security systems.
Over the years Don brought in his family to help build the company and provide security protection to the community. Don increased the business by making deals with county sheriff departments to provide a monitoring arrangement for them. These successful business deals started with Chisago County, then Washington, Wright, Sherburne, Mille Lacs and Kanabec counties.