NRC International manufactures German-engineered galvanic O₂ measuring cells for automotive exhaust gas analysis. Each sensor is a direct, OEM-compatible replacement built for vehicle emissions testing and workshop diagnostics, delivering the responsive, accurate oxygen readings these measurements depend on.
Our sensors replace original cells in exhaust gas analyzers from Bosch, AVL, MAHA, and Motolyser, and fit almost all professional emissions-testing systems on the market. NRC exhaust cells fit emission analyzers (AU devices) that use a 3-pin Molex connector, so confirm your unit's connector before ordering. To match a sensor to your equipment, check the full compatibility table by analyzer brand or model.
For workshops and testing stations ordering at volume, request a bulk order for pricing and current stock. Every NRC cell is individually tested and quality-checked before shipment, and made in Germany, so the sensor you fit performs accurately from the first reading and keeps your analyzer in service.