Innova 5568 Pro Digital Timing Light Review: A Professional-Grade Digital Multi-Function Tool
The Innova 5568 Pro Digital Timing Light is a robust, multi-function diagnostic tool designed for professional mechanics and serious DIY enthusiasts who demand accurate readings on a wide range of ignition systems.
By Elvis Dicki
Updated October 20, 2026
In the world of automotive diagnostics, a reliable timing light is an essential tool for tuning engine performance and ensuring optimal ignition timing. The Innova 5568 Pro Digital Timing Light positions itself as a professional-grade instrument, moving beyond basic strobe functionality to incorporate a suite of digital diagnostic readouts. This tool is engineered for mechanics and advanced DIYers who work on vehicles with conventional, electronic, distributorless (DIS), and computer-controlled ignition systems, spanning both 2-cycle and 4-cycle engines. It’s a digital multi-meter and timing light in one, built for daily shop use where accuracy and durability are non-negotiable.
At its core, the Innova 5568 is designed to replace several tools by offering four key digital functions: tachometer, advance, dwell, and voltage readings. Its construction emphasizes resilience with a heavy-duty, shock-proof housing, while features like a slim rotating barrel and detachable leads aim to improve usability in cramped engine bays. Based on an analysis of its specifications, design, and user feedback, the Innova 5568 Pro Digital Timing Light is a comprehensive diagnostic tool that justifies its place in a professional toolkit for those who need versatile and accurate ignition system analysis.
Innova 5568 Digital Timing Light
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Innova 5568 Pro Digital Timing Light at a Glance
| Specification | Detail |
|---|---|
| Primary Functions | Tachometer, Advance, Dwell, Voltage |
| Engine Compatibility | 2-cycle & 4-cycle engines |
| Ignition System Compatibility | DIS, conventional, electronic, computer-controlled |
| Tachometer Range | 249 to 9,990 RPM |
| Advance Range | 0 to 90 degrees |
| Dwell Range | 0 to 180 degrees (2-12 cylinders) |
| Voltage Range | 10 to 16 volts DC |
| Pickup Type | Inductive, with detachable 6-foot leads |
| Housing | Heavy-duty ABS, shock-proof with molded protective boot |
| Included | Professional timing light, molded plastic storage case |
Design and Build
The Innova 5568 Pro is built with the rigors of a professional automotive environment in mind. Its housing is constructed from heavy-duty, shock-proof ABS plastic, designed to withstand the occasional drop and the general knocks of daily use. A key design feature noted by the manufacturer is the molded rubber or plastic boot that covers the body, providing extra protection specifically against contact with engine fan blades, a common hazard when working in a running engine bay. This focus on physical durability suggests a tool meant for a busy shop rather than occasional garage use.
The form factor incorporates a slim, rotating barrel that houses the timing light. This rotation allows the user to aim the strobe light more precisely at timing marks, which is crucial when access is limited. The unit features a backlit LED display, making the digital readout easier to view in poorly lit engine compartments or under a vehicle. Instead of a traditional trigger mechanism found on many timing lights, the 5568 uses an on/off button to activate the strobe. The leads are a notable feature: they are a full six feet long and are detachable from the main unit, which aids in cable management and storage. The tool ships with a molded plastic storage case, helping to keep it organized and protected when not in use.
Performance and Features
Digital Multi-Function Readout
The standout performance characteristic of the Innova 5568 is its integrated four-function digital display. This transforms it from a simple strobe light into a comprehensive diagnostic tool. The display shows tachometer readings from 249 to 9,990 RPM, utilizing patented skip circuitry to maintain accuracy at high revolutions. It displays ignition advance from 0 to 90 degrees for both 2 and 4-cycle engines, allowing mechanics to check and set base timing as well as monitor mechanical and vacuum advance curves. The dwell function covers 2 to 12 cylinders with a range of 0 to 180 degrees, useful for tuning older points-based ignitions. Finally, it includes a voltmeter function reading from 10 to 16 volts DC, providing a basic check of the vehicle’s charging system during timing procedures.
Compatibility and Usability
The tool’s broad compatibility is a major feature. The manufacturer states it works with most ignition systems, including Distributorless Ignition Systems (DIS), conventional, electronic, and computer-controlled systems on both domestic and import vehicles. This universal fit is essential for a professional tool that must service a wide variety of cars and trucks. The inductive pickup clamps onto a spark plug wire, and the long, detachable leads provide ample reach. The ability to concurrently display timing advance alongside RPM is highlighted as a useful feature for dynamically checking advance curves without needing a second tool.
Operational Notes
While the digital functions are a significant upgrade, the operational method differs from traditional lights. The use of a button instead of a trigger means the strobe stays flashing once activated until the button is pressed again, which can be seen as either a hands-free convenience or a departure from expected operation. The manufacturer-provided description notes the tool is designed for easier viewing in hard-to-see places, aided by the backlit screen and rotating barrel.
Setup, Support and Ownership
Setup for the Innova 5568 involves connecting the detachable leads to the vehicle’s battery and clamping the inductive pickup around the number one spark plug wire, a standard procedure for timing lights. The included molded plastic storage case is a practical inclusion for keeping the unit and its cables organized, which is valuable for tool longevity in a professional setting. The manufacturer provides a one-year limited warranty, a common coverage period for tools in this category. Specific details regarding firmware updates, accessory availability, or upgrade paths are not listed in the provided data. As with many specialized diagnostic tools, mastery comes from understanding the vehicle’s ignition system and the tool’s specific functions, which may require consulting the user manual for initial configuration between different engine types and ignition systems.
What Owners Say
Owner feedback for the Innova 5568 Pro Digital Timing Light is overwhelmingly positive, reflected in its high average rating. The distribution of ratings shows a significant majority of users award it the highest score, with a much smaller proportion giving lower ratings. Reviewers who are positive frequently praise it as the best timing light they have owned, citing its solid construction, comprehensive feature set, and reliable performance. Specific compliments mention its utility for tuning classic cars with points-based ignitions, the convenience of the multi-function display, and the consistent accuracy of the timing flashes.
Some critical feedback from owners centers on the included instructions, which several found lacking or confusing, particularly when first learning to navigate the multiple functions. The button-operated strobe, as opposed to a trigger, is noted as a difference that some users need to adapt to. A few reviews reference previous experience with other Innova models, with some stating this professional digital model corrected accuracy issues they perceived in more basic versions, leading to a strong sense of trust in its readings.
Pros and Cons
Pros
- Four integrated digital functions (Tach, Advance, Dwell, Voltage)
- Heavy-duty, shock-proof housing with protective boot
- Broad compatibility with most ignition system types
- Adjustable rotating barrel for precise aiming
- Detachable six-foot leads for easier cable management
- Includes a dedicated molded storage case
- Backlit LED display for low-light visibility
Cons
- User manual and directions can be confusing
- Uses a button instead of a traditional trigger
- May have a steeper learning curve due to multiple functions
- Primarily plastic construction (though rated as shock-proof)
- Higher price point compared to basic timing lights
- Specific accessory or probe options are not detailed
Who Should Buy It (and Who Should Skip It)
The Innova 5568 Pro Digital Timing Light is an ideal purchase for professional automotive technicians and serious DIY enthusiasts who regularly work on engine timing and ignition systems. It is perfectly suited for those who need a single, reliable tool to handle a wide array of vehicles—from classic cars with points to modern vehicles with computer-controlled ignition—and who will utilize the additional tachometer, dwell, and voltage functions. Its durable build justifies the investment for daily or frequent use. Owners of performance or vintage vehicles who perform their own tuning will find the advance and dwell measurements particularly valuable.
This tool is likely overkill and not the best choice for someone who only needs to check basic timing once every few years on a single, modern vehicle. For those users, a simpler, lower-cost inductive timing light would be sufficient. Individuals who prefer the tactile feedback of a trigger or who are easily frustrated by potentially unclear instructions might also want to consider other options. If your work never involves vehicles with distributor-based or points-type ignition systems, the advanced dwell function may be unnecessary.
Final Verdict
The Innova 5568 Pro Digital Timing Light successfully fulfills its role as a professional-grade diagnostic tool. By integrating a precise digital tachometer, advance meter, dwell meter, and voltmeter into a durable timing light body, it eliminates the need for multiple separate instruments during ignition service. Its design considerations—the shock-proof housing, protective boot, rotating barrel, and long detachable leads—are all thoughtfully aimed at real-world shop usability. While the interface may differ from traditional lights and the instructions could be more intuitive, the core performance and accuracy, as reported by a large base of users, appear solid.
For the right user, this tool represents a consolidation and upgrade of capability. It’s not just a timing light; it’s a compact ignition analysis station. When you consider the cost of purchasing individual quality tools for tach, dwell, and timing, the value proposition for a professional or dedicated hobbyist becomes clear. If you demand accuracy, need broad compatibility, and will use the advanced functions, the Innova 5568 Pro is a compelling choice that is built to last. For more insights on specialized tools and tech gear, explore our other reviews and the Tech Gear section.
FAQs
Does the Innova 5568 work on modern cars with coil-on-plug ignition?
According to the manufacturer’s specifications, the Innova 5568 Pro is compatible with most ignition systems, including Distributorless Ignition Systems (DIS) and computer-controlled systems, which encompass many modern coil-on-plug designs. The inductive pickup clamps onto a spark plug wire, so it requires a wire to inductively sense the spark event. On true coil-on-plug systems with no external wire, an alternative method or accessory may be needed, but this specific scenario is not detailed in the provided data.
Can I use this timing light to set timing advance on a running engine?
Yes, this is a primary function of the tool. The digital advance readout allows you to see the ignition advance in degrees while the engine is running. You can use this to set the initial base timing and also to observe how the advance changes with RPM (mechanical advance) and with vacuum (vacuum advance), providing a dynamic picture of the ignition timing curve.
What is the advantage of having a dwell function?
The dwell function measures the amount of time, in degrees of distributor rotation, that the ignition points remain closed (or the electronic equivalent in an ignition module). This is a critical adjustment for the proper operation and longevity of points-based ignition systems, commonly found on classic and vintage vehicles. A correct dwell angle ensures optimal coil saturation for a strong spark.
Is the display difficult to read in bright sunlight?
The product description states the unit has a backlit LED screen for easier viewing in hard-to-see places, which typically includes low-light conditions. The data does not include specific information about anti-glare coatings or performance in direct bright sunlight. The backlight should aid visibility, but as with many digital displays, extremely bright ambient light could potentially make it harder to read compared to an analog dial.
About the author
Elvis Dicki writes reviews and buying guides for CyberSecLabs.