The VEMO OE quality knock sensor is engineered to the exact specifications of the vehicle manufacturer to ensure the replacement sensor is the same in quality and function as the part installed as first equipment. Product Features:OEM quality direct fit applicationGround-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI)Mounting hole is the same size as OEMaintains OE specifications for frequency response We got you covered! Many active sensors contain computer chips, which are sensitive to electrostatic, moisture, and other harmful contaminates. This is why more than 1,500 of our VEMO sensors and switches are packaged in an intelligent sensor protection foil (iSP-foil) to prevent electrostatic discharge. Packaging is made of durable LDPE, metalized polyester, and cross linked urethane resin for long lasting use. Integral antistatic properties keep contents from electrostatically charging during movement and transportation. In essence, we want to insure you receive the highest quality sensor, which works right out of the box, every time. Additional Features:Protects electronics from static discharge.Protects electronics against moisture.Superior filtering function of oxygen.