Universal 1000-11000 RPM Adjustable Tachometer Gauge Warning Shift Light(Red Light)

1. Universal, works on all makes and models
2. Works with all cylinder gasoline engines, such as 4, 6 & 8 Cyls
3. Comes with bolted mounting stand
4. Can aid the driver in making accurate shifts for best performance
5. Wiring instructions: red is connected to the positive pole of the car, and black is connected to the negative pole. Select the car cylinder position by cutting the jumper.