The Vemo Knock Sensor - V10721196 is a high-quality automotive sensor designed to detect engine knocking or pinging. It is made by Vemo, a trusted brand in the automotive industry. The sensor is compatible with various makes and models of vehicles and is designed to accurately detect engine vibrations caused by detonation, allowing the engine control unit (ECU) to adjust the ignition timing and prevent engine damage. This product is essential for maintaining the optimal performance and efficiency of a vehicle's engine.