Sentry Equipment - Sampling Systems - Sampling Equipment

Telephone:  +1-262-567-7256


About Us

With proven sampling expertise since 1924, Sentry products and services provide business operations the critical insights to optimize process control and product quality. We deliver true representative sampling and analysis techniques to customers around the globe, empowering them to accurately monitor and measure processes for improved production efficiency, output and safety. Standing behind our commitments, we are determined to tackle any application, anywhere.
We know that running an efficient operation isn’t easy. It requires thorough, careful analysis of controlled, real-time data achieved through reliable, accurate and repeatable process monitoring and measuring. By effectively conditioning, sampling and measuring gas, liquid, slurry, powder, solids, steam or water within their production environments, our customers obtain the critical insights they need to control and optimize their processes.

The Sentry Advantage

Industry-leading experience - Taking the time to understand our customers’ business needs, we go above and beyond their immediate demands, exceeding expectations with the highest quality, customized sampling solutions in the market. Our engineers are well-respected throughout the industry for their technical competencies, applications expertise, and strong engineering backgrounds, which allow us to consistently offer the reliable technical solutions and support our customers demand.
World-class sampling application expertise - No matter the application, we are the go-to resource for high-performance sampling. Our advanced technical knowledge and experience is employed not only to simply meet standards, but sets the industry standards by which all others operate. We are uniquely qualified to meet each of our customer’s specific needs, from standard models born out of our proven expertise in designing sampling applications across a diverse range of industries to fully custom-engineered systems.
Improving safety and protection - We deliver sophisticated, representative sampling and analysis systems, perpetually driven to improve overall process efficiency by providing key insights into our customer’s operations. From sample conditioning – temperature, pressure, flow – to analyzers to identify and quantify chemical properties of the process stream, we enable our customers to develop higher performing, safer processes and products while protecting their assets, operators and the environment. 
Employee-owned and proud of it - As an employee-owned company, our team fully appreciates the value of every customer and the importance of every relationship. Learn more here.
Committed to long-term partnerships - At Sentry Equipment Corp, we continually invest in finding more and better ways to serve our customers. Over the years, we have expanded our Sentry brand by introducing new products, new services and acquiring companies with strong reputations, expertise, technologies or reach, and successfully uniting each company’s competencies with our own. Moving forward, with sampling remaining at the core of what we do, we will continue to extend our breadth of expertise to deliver more value throughout the process value chain.




Our 66,500 square foot, state-of-the art building is located in the Commerce Centre of Pabst Farms, just south of Interstate 94 in Oconomowoc, Wisconsin. At our corporate and manufacturing facility, Sentry Equipment Corp employs ISO-certified processes and innovative technologies to manufacture sampling solutions, while saving energy and increasing sustainability through features such as environmentally conscious landscaping and state-of-the-art LED lighting fixtures.

Our Vision:

Every Employee an Owner | Every Customer a Commitment

Our Corporate Values:

  • Honesty, Integrity, Trust & Respect
  • Positive Environment
  • Fairness
  • Customer Driven
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Sentry Equipment Corp  |  966 Blue Ribbon Circle North  |  Oconomowoc, WI 53066 USA  |  +1-262-567-7256  |

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