GlowShift Tachometer Signal Filter Adapter for Ignition Noise & RPM Stability

Eliminate Gauge Needle Bounce & Signal Interference

If your tachometer gauge needle bounces wildly, reads inaccurately high, or drops out at high RPMs, electrical noise in your ignition system is the primary culprit. The GlowShift Tachometer Signal Filter Adapter cleans up erratic, noisy, or weak pulse signals generated by vintage ignition components, delivering a smooth, stabilized RPM signal directly to your tachometer or shift light device.

Vintage 2-stroke CDI ignitions and single-coil setups frequently create leading or trailing voltage spikes that confuse digital and analog tachometers. This inline filter strips out electrical interference while maintaining precise pulse frequency timing.

System Compatibility:

• CDI & Single-Coil Ignitions: Ideal for vintage 2-stroke machines, single-cylinder/twin engines, and single-coil setups.
• Points & Vintage Electricals: Compatible with historic point-style ignition systems and vehicles with weak or noisy stator/charging circuits.
• Gauges & Shift Lights: Highly recommended when installing GlowShift tachometers, digital RPM displays, or standalone programmable shift lights.

Key Features & Specifications:

• Signal Conditioning: Strips leading/trailing signal noise and voltage spikes for stable needle sweep.
• Inline Design: Compact form factor easily tucked under the dash or near the ignition coil.
• Easy Installation: Simple wiring inline between your RPM signal source (coil/CDI signal) and the tachometer.
• Included Items: Step-by-step installation instructions.
• Warranty Support: Backed by GlowShift's One-Year Limited Warranty and free lifetime technical support.

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