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Welcome to Armstrong Monitoring

As a leading manufacturer of gas detection and hazardous gas monitoring equipment, our commitment to ensuring safer environments, healthier air, and reduced environmental impact has helped forge our reputation as a trusted gas monitoring and detection solution provider with global reach. 

For over 30 years we have proudly helped our clients adapt to the growing demands of both the gas detection and monitoring industry and the environment.

Product Manuals

Looking for a manual for your new gas detection system, or for one of our legacy products? Our Resource Center contains manuals for all of our current products as well as most of our older equipment.


EZ Cal Program

Never calibrate another gas sensor again!  Our all new EZ Cal Sensor Exchange program takes the work out of your preventative maintenance, and gives you the security of knowing your system is working as it was designed.



Wondering what equipment to use in a given application? Our helpful application guides will get you pointed in the right direction, with products recommendations and a detailed explanation of the hazards.


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Armstrong Monitoring
215 Colonnade Road South
Ottawa, Ontario
K2E 7K3

Toll Free: 800.465.5777

- Standard Terms and Conditions 

- Careers 

- Where to Buy 

- Request Service 

- EZ Cal Program 

- AMC Webmail