The Horiba PG-337 is a high-end portable gas analyser engineered for precise, on-site measurement of combustion gases including NOx, SO₂, CO, CO₂, and O₂. Combining advanced NDIR and electrochemical sensor technologies, the PG-337 delivers fast, stable, and highly accurate results. Its enhanced sample conditioning system, intuitive operation, and robust design make it ideal for regulatory compliance testing, emissions monitoring, and combustion efficiency optimisation in industrial and environmental settings.