1.Product features: Functionlimiting speed Speed range10 to 120 km/h Speed limit deviation1 km/h The operating voltage range 9-36 v Application temperature-40 to 85 Rated power consumption2 w Apply toall kind of vehicle Vibration-resistance performance indicatorsfrequency 20-50hz acceleration 1 g Electromagnetic compatibilitythe group of impulse voltage 4000 v The vehicle speed limiter can be installed in the car, bus, school bus, truck, garbage truck, oil tank truck, etc.! If the driver drives over speed, then there may be many traffic accidents. So, choose nxs-3 vehicle speed limiter is your best choice! We have original pvc cover and normal pvc cover, the oem will be welcome! no problem! Connection way: 1. The standard connection way it so connect the fuel pump: The green wire of vehicle speed limiter should be connected the fuel pump in the car. The other side which Connect the fuse box should be cut off and reconnect with the green wire. 2. If some vehicles have no fuel pump, please connect to the key switch. The green wire should be connected the on point. Cut the wire behind the on point and green wire Reconnected it. The fitter can see that there is the key switch. Turning the key , before turning, the volts is 0v, ( the fitter can measure voltages with multimeter). But after turning the key, it is 12v. Just connect this wire. The vehicle speed limiter can be installed in the vehicle with electronic pedal and mechanical pedal! We had got the soncap certificate, iec test report, ce certificate, fcc certificate, rohs certificate, ece certificate. Soncap: iaf code :ji03ce Iec test report: uni2015091704sr-01 Ce certificate no, : ctb150702006e-zs Fcc certificate no.: ctb150702006e Rohs certificate no.: ctb150702001c-zs Ece certificate no.: 10r-058511