# Vehicle emission monitoring technology in Spain > Live situation record from CLSTR: https://clstr.news/situations/vehicle-emission-monitoring-technology-in-spain > Updated: 2026-08-25T07:53:53.000Z. Sources: 5. Developments: 2. Madrid-based laboratory OPUS RSE has deployed the first fixed Remote Sensing Device (RSD) radar on a high-density road in Madrid to measure real-time vehicle exhaust gases. The system uses infrared and ultraviolet light to quantify up to seven pollutants, including carbon monoxide, nitrogen dioxide, and particulates, with a certified 10% precision. The technology, which is camouflaged in the pavement to avoid traffic interruption, utilizes license plate recognition to cross-check data with the official DGT registration database. Following these deployments and tests, the technology is being positioned as a tool for environmental monitoring and enforcement. OPUS RSE is noted as the only laboratory globally accredited under the ISO-17025 standard for this specific field. As the European Union monitors these developments, Brussels is preparing regulations that may implement this technology across other member states to support the energy transition and combat combustion engine pollution. ## Timeline ### 2026-08-25: Spain tests remote sensors to monitor vehicle emissions Spain is testing remote emission sensors that use light beams to measure vehicle exhaust gases in real-time, a technology the EU may eventually adopt for all member states. 5 sources. https://clstr.news/cluster/spain-tests-remote-sensors-to-monitor-vehicle-emissions ### 2026-08-07: OPUS RSE Deploys First Real‑Time Vehicle Emission Radar in Madrid OPUS RSE installed Spain’s first fixed radar that measures vehicle emissions in real time on a Madrid road, using infrared/ultraviolet sensing to detect seven pollutants without stopping traffic. 2 sources. https://clstr.news/cluster/opus-rse-deploys-first-realtime-vehicle-emission-radar-in-madrid --- Cite as: Vehicle emission monitoring technology in Spain. CLSTR, https://clstr.news/situations/vehicle-emission-monitoring-technology-in-spain