Serious car enthusiasts and racers, this Intellitronix RPM activated switch is some seriously cool tech for your ride! This American-made device lets you program any RPM setting between 2,000 and 9,900 with precise 100 RPM increments using easy dipswitch controls. The bright digital display shows you exactly what's happening, and the blue LED lights up when your set RPM is reached - super helpful for testing and tuning. You can choose between normally open or normally closed operation, giving you flexibility for different accessory setups. Whether you're controlling nitrous systems, electric fans, shift lights, or other performance accessories, this switch gives you pinpoint accuracy. The built-in safety features are impressive too - it has over-current protection, short-circuit protection, and over-voltage protection so you can't accidentally blow it up during installation or use. The 3.5 AMP rating handles most accessory loads comfortably. Installation is straightforward if you're comfortable with basic automotive wiring. The housing is durable and designed to handle engine bay conditions. Made right here in the USA with a limited lifetime warranty, you know this is quality gear that'll perform when it counts. This is one of those tools that separates the casual tinkerers from the serious tuners - if you want precise control over when your accessories activate based on engine speed, this switch delivers professional results at a reasonable price. Your inner engineer will geek out over the programming possibilities!