MSD 8969 Digital RPM Window Switch with LED Programming

The MSD 8969 Digital RPM Window Switch is a versatile, digitally programmable RPM-activated switch designed to turn a circuit on at one RPM set point and off at a separate, higher RPM set point — creating a precise RPM "window" for controlling accessories like nitrous systems, boost controllers, and more. Unlike older analog window switches, the MSD 8969 requires no changeable RPM modules; all programming is handled directly on the unit via an intuitive LED push-button display.

Key Features:

• No RPM Modules Required — Activation points are set digitally by scrolling through the LED display to your desired RPM values
• Wide Programming Range — Adjustable from 200 RPM to 15,000 RPM in precise 100 RPM increments
• Dual Output Channels — Features one Normally Open (NO) and one Normally Closed (NC) output, each rated up to 2.5 amps continuous
• Broad Signal Compatibility — Accepts input from a coil negative terminal (stock ignitions), tach output from an ignition control, ECU tach output, or a 5-volt tach signal
• Coil-per-Cylinder Compatible — Works with modern coil-on-plug (COP) ignition systems, waste-spark coil packs, and multi-coil configurations
• Wide Operating Voltage — Compatible with 9–18 volt systems for broad vehicle compatibility
• Emissions Legal — Legal for use on emissions-controlled vehicles, non-emissions-controlled vehicles, and race-use-only vehicles
• UPC: 085132089697

The MSD 8969 RPM window switch is an ideal solution for nitrous oxide systems, allowing the nitrous to activate above a minimum RPM threshold and automatically deactivate before redline — all without any wiring relay modules. Its compatibility with MSD 6, 7, 8, and 10 Series ignition controls, as well as OEM and aftermarket ECUs, makes it one of the most flexible RPM-activated switches available for performance street and race applications.