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Welcome to Armstrong Monitoring

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As a pioneer in the gas detection industry, Armstrong Monitoring is dedicated to pushing the boundaries of innovation in environmental monitoring technology. Our journey began with a shared vision of creating cutting-edge solutions that empower industries to make informed decisions to ensure the safety of building occupants and protect valuable assets.

Our mission is to revolutionize the way industries approach environmental monitoring. We believe that precise data is the cornerstone of effective decision-making, and we are committed to providing accurate, reliable, and real-time monitoring solutions that empower our clients to take action with confidence.

One of our proudest achievements is the development of our groundbreaking patent-pending technology – the ADAPTiCal™ Calibration Algorithm. This revolutionary algorithm has redefined the calibration process, enabling us to deliver unparalleled speed, reliability, and stability in our monitoring systems.

We invite you to join us on this exciting journey of innovation and discovery. Whether you're in the manufacturing, energy, healthcare, or any other industry that requires accurate environmental monitoring, Armstrong Monitoring is here to help you thrive. Together, let's shape a future where data-driven decisions lead to healthier environments and a more sustainable world.

We're Hiring!

Interested in joining our team? View our job listings and apply today!
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Provide the best value to our customers, suppliers and employees.


Provide the best gas detection solutions in the world.

What That Means

Offer the most advanced, customizable (yet backward compatible), easiest to use, install and maintain gas detection solution for any environment.

How We Achieve It

Combine our unparalleled customer service and reputation for providing rugged, high-quality equipment with our new leading-edge sensing platform.


Armstrong Monitoring, an Ottawa based, ISO-9001 registered manufacturer of high quality gas sensing equipment, prides itself in meeting the needs its customers.

Since its inception, Armstrong Monitoring has worked in concert with industry and leading research organizations in the design and commercialization of innovative new technologies and products for a wide range of applications. Armstrong Monitoring’s diverse product line features equipment designed to detect and monitor an extensive list of gases including CO, NO2, O2, refrigerants, and combustible gases, such as hydrogen, propane, methane and methanol, plus a variety of exotic species. Equipment choices range from simple, building block sensor elements and transmitters, to complete, integrated, turnkey systems.

In January, 1981 Armstrong Monitoring sprung from Leak-X Corp. Named after our founder, Lawrence J. Armstrong, the company was launched with an emphasis on the budding hazardous gas detection market.

For over 40 years Armstrong Monitoring has manufactured a highly dependable and cost effective line of detection equipment. We are proud to say that much of that equipment is still in service today.

In 1984 Armstrong Monitoring’s service department was established, and has developed into a respected multi-vendor service group, offering both factory and field service with global reach.

In 1998 Armstrong Monitoring first became certified to ISO 9001 standard and has consistently maintained adherence and certification to this standard.

In 2004 Armstrong Monitoring was acquired by a group of successful local investors from Ottawa’s technology sector. The new ownership group has worked to streamline the product offering and simplify the manufacturing process.

In 2014, Armstrong Monitoring was acquired by a team specializing in the development of new technologies. Building on the wide customer and product base, and ISO certified processes, Armstrong Monitoring developed a new vision for gas detection. It developed a new common platform where the equipment is modular, upgradeable, backwards compatible and easy to maintain and service and that will support any type of gas and gas sensing technology. This modularity means that advances in technology can rapidly be integrated into the equipment, and into systems already installed. Supported by Adaptical™, the patent pending calibration routine, the equipment can be serviced by anyone, reducing the need for specialized skilled trades in remote or challenging sites.

Quality Management

Armstrong Monitoring is dedicated to making sure that our products meet our customers' needs, as well as the requirements laid out in local regulations and codes. To ensure we are meeting the high standards of continuous improvement we have set for ourselves we have sought out and obtained ISO 9001 certification. 

Armstrong Monitoring is currently certified to ISO 9001:2015, and we have held ISO 9001 certification since 1998. In order to measure the effectiveness of our Quality Management System we regularly undergo internal and external audits, examining all aspects of our business from design, through sales and manufacturing, to service.

Become an Armstrong Monitoring Representative

Armstrong Monitoring is proud to work with dozens of manufacturers’ representatives and distributors all over North America. If you are interested in becoming an Armstrong representative please fill out the form below.

How can Armstrong Monitoring help you?

Contact Us
Armstrong Monitoring
215 Colonnade Road South
Ottawa, Ontario, Canada
K2E 7K3
Toll Free: 
1 800 465 5777
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