Link KnockLink G4 Digital Warning


The KnockLink G4 Digital Warning is the only self calibrating, knock warning instrument on the market. The KnockLink  G4 won a SEMA 2011 media award for best new product.

Drive with peace of mind, knowing that your engine is operating safely when using the KnockLink G4. The KnockLink G4 will show the beginning of detonation long before you hear it.

The KnockLink G4 is designed for both street and race use and is the only device on the market that requires no setup. Other systems require time consuming gain, frequency and noise settings to be adjusted. Without proper knock listening tools, this can prove difficult if not impossible. The KnockLink G4 requires none of this, just wire it in and start the engine.

Even light detonation will damage an engine over time. The G4 KnockLink's microprocessor continuously scans the knock signal and warns for any knock occurring. The engine's RPM and load is automatically 3D profiled by the KnockLink G4, continuously storing and dynamically adjusting this noise profile map while looking for the particular knock frequency.

Connect to either your existing unused sensor or, preferably, add an additional sensor (sold separately).

Operation is simple. The colour of the LED represents four different modes:


  • Dim Blue - KnockLink is powered, waiting for the engine to be started
  • Flashing Blue - KnockLink has detected the engine has started and is now calibrating
  • Dim Green - KnockLink is adapting to the engine's noise profile and listening for knock
  • Flashing Red - KnockLink has detected knock. Avoid large throttle openings, seek professional advice