Digital Timing Light #3568a

The Innova 3568 top-of-the line timing light is ideal for the selective do-it-yourselfer. Includes a split-screen digital LCD that displays tachometer and advance readouts simultaneously.

Free shipping | 1-Year Warranty


This product can expose you to chemicals including DiNP, which is known to the State of California to cause cancer.
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Easy to Read Digital Display:

Digital Tach - 249 to 9,990 RPM
Digital Advance - 0° to 90°

Slim, Rotating Barrel:

Allows for easier and better aiming at the timing mark.

Detachable Leads:

Make replacements and storage easy.

Patented Skip Circuitry Test:

Tests up to 9,990 RPM.

Built-in Hand Guard:

Protection from moving parts in the engine bay.

Need more help?
Inductive Pickup



Does my timing light work on positive ground systems?
Our timing light will only work on 12V negative ground system. Some pre-1960’s vehicles used positive ground systems. Check service manuals for the correct ground systems.

No, unfortunately not. Our timing lights will only work on conventional breaker point, electronic ignition systems, or with DIS (distributorless ignition systems). 

Diesel vehicles do not have spark plugs or distributor. Therefore, our timing lights will not work on diesel engines.

Make sure the upper and lower ferrite cores of the inductive pickup clip are clean. Also, make sure the inductive pickup clamp is properly connected to the No. 1 spark plug cable.
Make sure the battery clips are firmly connected to the battery terminals. Make sure the battery clip polarity is correct (red battery clip is connected to the positive (+) battery terminal, black battery clip is connected to the negative (–) battery terminal).
Disconnect and reconnect the timing light's positive (+) battery clip from the battery to reset the unit.
Your timing light may be used on vehicles with 6-volt electrical systems by using the following connection procedure: 12-volt automotive battery required.
1. Connect the RED battery clip to the positive (+) terminal of a 12-volt battery.
2. Connect the BLACK battery clip to the negative (-) terminal of a 12-volt battery.
3. Using a length of 18AWG jumper wire, ground the negative (-) terminal of the 12-volt battery to a known-good ground on the vehicle under test.
Consult the vehicle's service manual for procedures and specifications.
Place the RED lead onto the positive (+) side of the battery. Place the BLACK lead onto the negative (-) side of the battery, or the chassis of the vehicle.

You can download a copy of the Product User Manual from our website: