Take the guesswork out of tachometer signal conversion. The Dakota Digital SGI-20 uses an advanced GMR (Giant Magnetoresistance) pickup to clamp directly onto a low-voltage, high-current wire. No splicing, no cutting, no permanent modifications to your existing wiring harness.

Once installed, the SGI-20 converts the detected signal into a clean, stable 12-volt square wave output that modern instrumentation can reliably read. Whether you're retrofitting a classic hot rod, upgrading a custom build, or troubleshooting a signal compatibility issue in the shop, the SGI-20 delivers a consistent signal your gauges or engine management system can trust.

Common Applications:

• CDI (Capacitor Discharge) ignitions
• Coil-over-plug setups
• Distributorless coil packs
• Diesel injector signals
• >Any low-voltage, high-current trigger source requiring a clean 12V square wave output

Key Features:

• GMR pickup attaches without splicing for a clean, non-destructive install
• Converts low-voltage high-current signals to a clean 12V square wave output
• Compatible with receiving devices configurable to a 1-cylinder input
• Ideal for DIY enthusiasts, custom builders, and professional installers alike