Every Employee an Owner, Every Customer a CommitmentIf you need a sample cooler or sampling equipment for steam/water, gases, liquids, slurries or bulk solids, you have come to the right place. Sentry has over 80 years ex......Every Employee an Owner, Every Customer a CommitmentIf you need a sample cooler or sampling equipment for steam/water, gases, liquids, slurries or bulk solids, you have come to the right place. Sentry has over 80 years experience in manufacturing sampling components and sampling systems. We also manufacture compact heat exchangers and boiler blowdown heat recovery systems. In August of 2007 the entire company moved into a brand new, custom building in the Commerce Centre of Pabst Farms, just South of Interstate 94 in Oconomowoc The new 51,100-square-foot building houses all of Sentrys manufacturing and offices. State-of-the-art LED lighting and environmentally-conscious landscaping are just two of the buildings special features. Providing engineered solutions to our customers since 1924, Sentry Equipment Corp is the worldwide technology leader in sampling systems and components to virtually all markets including pharmaceutical, food, beverage, dairy, chemical, petrochemical, wastewater, cement, mining and nuclear.