About

Arjay's Flow MonitorArjay Engineering has been designing and manufacturing process and environmental controls for over 20 years. Their main facilities are located in Oakville (Toronto), Canada. Support facilities are also located in Vancouver, Canada and Beijing, China. They are also supported by a network of product representatives throughout North America and in various regions of the world.

Arjay is not only able to provide their customers with manufactured products, but they also accommodate their customers by providing custom design and engineering services and control panel assembly. To enhance their services, Arjay invites you to share your application inquiry with them. Their core technologies and design flexibility may extend beyond the products listed. The opportunity to address your application ideas with their designs is welcomed. Arjay also invites you to contact them if your interests include a joint venture, re-sale, or representative opportunity.

Arjay manufactures under the following trade names:

  • The Level-Ease Monitors and Controls
  • The HydroSense Oil in Water Monitor
  • The Arjay and Enmet Series line of Gas Detection Products




Product Catalog



Technical Articles

Common HydroSense Questions and General Information Guide (.pdf) (Environmental and Water Quality Instruments) Hydrocarbons are a common and natural occurrence in the environment and varying concentrations in stormwater and effluent water are not unusual. Hydrocarbons in water can be found as free floating,... (View Full Article)
Confused about Carbon Monoxide & Ventilation? (Gas Sensing) How does new legislature regarding Carbon Monoxide and Ventilation affect you, as an HVAC contractor? An in-depth look at factors and considerations regarding the implementation of a gas monitoring... (View Full Article)