MSD RPM Activated Switch Kit

RPM Activated Switches can be used for many functions, from turning on a bulb or solenoid to starting a timing computer. Switch has two wires, one ground and one to open a circuit. Plug in an RPM module and wire the switch to the circuit. Once the engine reaches the selected RPM, the circuit is active until RPM drops below that point. Window switch includes two RPM circuits, one to start and one to discontinue and is ideal for nitrous applications where the system must be shut down before RPM limit is reached. Compatible with stock inductive or MSD ignitions. RPM modules not included

RPM Activated Switch - Chip Adjustable - Single Circuit - Sold as Each - Brand: MSD Ignition - Part Number: 8950