CODEL
Advanced Emissions Monitoring for Tunnel and Industrial Applications
CODEL is a UK-based designer and manufacturer of advanced emissions monitoring instrumentation, supplying reliable solutions for industrial processes, environmental compliance, and tunnel safety worldwide. Established in 1982 and headquartered in Bakewell, Derbyshire, the company has built a strong reputation for engineering high-performance monitoring systems that deliver accuracy, durability, and long-term value.
With decades of experience in the control and instrumentation sector, CODEL has continually evolved its technology in response to increasing environmental regulation and industry demand. Today, its comprehensive product range includes Continuous Emissions Monitoring Systems (CEMS), gas analysers, dust and particulate monitors, flow monitors, and specialised solutions for road and rail tunnel environments.
CODEL is widely recognised as a market leader in tunnel air quality and flow monitoring, with more than 10,000 tunnel instrument installations and over 12,000 CEMS systems deployed globally. These systems are designed to operate reliably in challenging conditions, providing operators with the critical data needed to maintain safety, optimise performance, and ensure compliance with stringent environmental standards.
CODEL’s Tunnel Emission Monitors are specifically engineered to meet the unique demands of road and rail tunnels. Built on proven technology and years of application expertise, they deliver accurate, real-time measurement of key parameters such as gases, visibility, and airflow. This enables effective ventilation control, helping to protect tunnel users, maintain safe operating conditions, and support efficient infrastructure management.
Across all applications, CODEL focuses on delivering robust, low-maintenance solutions that provide dependable performance over the long term. Its systems are designed not only to meet regulatory requirements but also to enhance operational efficiency through continuous, real-time data insights.
Supported by a global network of distributors and technical specialists, CODEL works closely with customers to provide complete monitoring solutions, from initial specification through to installation, service, and ongoing support. This commitment to quality, innovation, and customer partnership has established CODEL as a trusted name in emissions monitoring across a wide range of industries.