Global On-board Emissions Measurement System Market Strategic Research Report

Scope of the Report

The global On-board Emissions Measurement System market size is predicted to grow from US$ 153 million in 2025 to US$ 225 million in 2032; it is expected to grow at a CAGR of 5.8% from 2026 to 2032.

An On-board Emissions Measurement System, commonly known as a Portable Emissions Measurement System (PEMS), is a mobile instrumentation platform used to quantify pollutant emissions from vehicles and engines during real-world operation. Unlike laboratory dynamometer testing, PEMS provides a "Real Driving Emissions" (RDE) profile, capturing how a vehicle performs under varying payloads, ambient temperatures, and traffic conditions. In 2026, the technology has bifurcated into two primary forms: Hardware-based PEMS, which uses physical gas analyzers (NDIR, FTIR, and Chemiluminescence) and flow meters attached to the exhaust, and Predictive PEMS (virtual sensors), which uses AI algorithms to estimate emissions based on engine ECU data and digital twins. These systems are now mandatory for regulatory certification in major markets (Euro 6d/7 and EPA Tier 3), ensuring that the "emissions gap" between the lab and the road is permanently closed for both passenger cars and heavy-duty industrial machinery.

In 2025, global On-board Emissions Measurement System, production reached approximately 57.02 k units, with an average global market price of around US$ 2732 per unit. And global On-board Emissions Measurement System, production capacity reached approximately 80 k units. The average gross margin in this industry reached 24.79%.

The upstream supply chain for PEMS is a high-precision sector involving the manufacturing of sensitive gas detection hardware and high-speed data acquisition modules. The production of these systems requires specialized NDIR (Non-Dispersive Infrared) sensors for $CO_2$, electrochemical cells for $NO_x$, and flame ionization detectors (FID) for hydrocarbons. Additionally, the move toward "Virtual PEMS" has increased the importance of high-performance automotive-grade microcontrollers and edge-computing hardware. Key upstream suppliers include Hamamatsu Photonics (providing infrared detectors and light sources), Horiba (supplying high-precision gas analyzer cores), and Siemens Energy (a leader in the digital "Predictive PEMS" space, providing the algorithmic models used for virtual monitoring). These suppliers provide the foundational accuracy required for a system to be "regulatory-grade" and capable of surviving the vibration and thermal stress of on-road use.The downstream segment encompasses the entities that utilize PEMS for compliance, research, and fleet optimization. At this stage, value is generated through the verification of environmental standards and the reduction of legal risk for manufacturers. Significant downstream customers and high-volume institutional users include Toyota Motor Corporation and Volkswagen Group (using PEMS for RDE certification of new vehicle models), Cummins (deploying systems to monitor heavy-duty diesel and hydrogen engine performance), and the U.S. Environmental Protection Agency (EPA) (utilizing PEMS for market surveillance and enforcement of the Clean Air Act). As of 2026, a growing downstream niche is emerging in the Construction & Mining sector, where operators like Caterpillar use PEMS data to optimize fuel efficiency and report carbon footprints for ESG (Environmental, Social, and Governance) compliance in large-scale infrastructure projects.

Key Questions Addressed in this Report

What is the 10-year outlook for the global On-board Emissions Measurement System market?

What factors are driving On-board Emissions Measurement System market growth, globally and by region?

Which technologies are poised for the fastest growth by market and region?

How do On-board Emissions Measurement System market opportunities vary by end market size?

How does On-board Emissions Measurement System break out by Type, by Application?

This report presents a comprehensive overview of the global On-board Emissions Measurement System market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• LDV Type
• HDV Type

Segment by Measurement Principle

• Non-Dispersive Infrared
• Chemiluminescence Detection
• Others

Segment by Power Supply

• Vehicle Power
• External Battery
• Others

Segment by Application

• Passenger Cars
• Commercial Vehicles

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global On-board Emissions Measurement System market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Passenger Cars, Commercial Vehicles evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact