Nitrogen oxide (NOx) sensors play a crucial role in modern emissions control systems, particularly as governments and industries push toward cleaner air and stricter environmental regulations. These sensors are designed to detect and measure the concentration of nitrogen oxides—primarily nitric oxide (NO) and nitrogen dioxide (NO₂)—in exhaust gases. Found predominantly in diesel engines and increasingly in gasoline vehicles, NOx sensors help ensure that engines operate within permissible emission limits while maintaining optimal performance.
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