Innova 3551 Inductive Timing Light vs Innova 3555 Advance Timing Light

Overall winner: Innova 3555 Advance Timing Light

Key Differences

Pick A (Innova 3551) if you want a simpler, more affordable inductive timing light noted for ease of use, bright display and diagnosing no-spark conditions. Pick B (Innova 3555) if you need an advanced timing light with an advance dial for base timing, a skip circuit for high-RPM testing and broader compatibility with ignition systems

Innova 3551 Inductive Timing Light

Innova 3551 Inductive Timing Light

Innova • ★ 3.9/5 • Budget

Inductive timing light for diagnosing ignition timing across domestic and import systems. Highlights timing checks, no-spark condition, and electronic/ computer-controlled engines. Customers note ease of use and brightness for clear marks

Pros

  • easy to use
  • bright display
  • diagnoses no-spark condition
  • works with multiple ignition systems

Cons

  • mixed build quality feedback
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Innova 3555 Advance Timing Light

Innova 3555 Advance Timing Light

Innova • ★ 3.8/5 • Mid-Range

Timing light with advance dial for base timing, mechanical, electronic, and computer-controlled systems. Includes a skip circuit for up to 9,990 RPM and a direct-read advance scale 0-60 degrees. One customer notes easy use and good value for money, though brightness and accuracy opinions vary

Pros

  • advance dial for base timing
  • works with most ignition systems
  • skip circuit for high RPM testing
  • direct reading 0-60 degree scale

Cons

  • mixed brightness opinions
  • perceived accuracy issues from customers
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Head-to-Head

CriteriaWinner
Price Innova
Durability Tie
Versatility Innova
User Reviews Innova