When do I need a Tachometer Signal Filter or H.E.I. Tachometer Signal Filter for my installation?Updated 2 hours ago

A Tachometer Signal Filter helps clean up poor, weak, or disordered pulse signals by removing unwanted interference from the signal, allowing the tachometer to provide a more accurate reading.

A Tachometer Signal Filter may be needed for applications such as:

• Single-coil ignition systems

• Point-style coil ignition systems

• Vintage vehicles with older electrical systems and components

• Vehicles with weak, strained, or stressed electrical systems

The H.E.I. Tachometer Signal Filter is specifically required for vehicles equipped with a High Energy Ignition (H.E.I.) system to provide an accurate tachometer reading.

If you're unsure which filter your vehicle requires, our Technical Support Department can help determine the appropriate filter for your application.

Note: The Tachometer Signal Filter is designed for use with GlowShift Gauges and is not guaranteed to work with other applications.