Innova 3320 Auto-Ranging Digital Multimeter
Red & Black
Price as of 2026-06-16. Check Amazon for the current price.
Quick Decision
Is This Right For You?
- •Risk-averse buyers — 7,561+ reviews give a highly reliable picture
- •KLEIN TOOLS RT250 GFCI Outlet Tester offers a better rating (4.8/5) at a similar or lower price ($25)
- •AstroAI Digital Multimeter Tester 2000 Counts — 59% cheaper at $15 (Score A+)
- •KLEIN TOOLS RT250 GFCI Outlet Tester — higher rated at 4.8/5 ($25)
📊 Based on data analysis of 185 products in this category.
Mubboo Score: B+
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other testers
Computed from live Amazon rating, review count, and price across 185 testers · last refreshed 2026-06-16.
How It Compares
This Product Innova 3320 Auto-Ranging Digital Multimeter | Most Popular AstroAI Digital Multimeter Tester 2000 Counts | Best Rated KLEIN TOOLS RT250 GFCI Outlet Tester | Best Value KAIWEETS Voltage Tester/Non-Contact Voltage Tester | |
|---|---|---|---|---|
| Price | $35.38 | $14.59 | $24.97 | $14.99 |
| Rating | 4.5/5 | 4.5/5 | 4.8/5 | 4.6/5 |
| Reviews | 7,561 | 54,848 | 11,490 | 5,196 |
| Mubboo Score | B+ | A+ | A- | A- |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Check included test leads and consider upgrading them for budget meters; for circuit breaker finders, allow time to learn the scanning process and always do a second pass over the panel.
- Good value for money
- Easy to use
- Accurate / reliable readings
- Useful features like backlight or audible alert
- Compact and portable design
- Quality control issues with test leads or defective units
- Requires patience or learning curve for accurate results
Related Video Reviews
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- 📹 Best Voltage Testers Under $50 (2026) — Top 5 Non-Contact Pens Reviewed! — TECHATOP
About Innova
- 4 products in our database
- Average rating: 4.5/5 across all products
- Price range: $35.38 – $349.99
- Categories: OBD2 Scanners, testers
Other testers
Bottom Line
Innova 3320 Auto-Ranging Digital Multimeter earns Mubboo Score B+. Priced at $35 — a mid-range option, below the category average of $55. Rated 4.5/5 from 7,561+ reviews. Strong buy if: risk-averse buyers. Skip if: klein tools rt250 gfci outlet tester offers a better rating (4.8/5) at a similar or lower price — AstroAI Digital Multimeter Tester 2000 Counts (Score A+, $15) may fit better.
Frequently Asked Questions
Is the Innova 3320 Auto-Ranging Digital Multimeter worth buying in 2026?
It earns a Mubboo Score of B+, with a 4.5/5 rating from 7,561 reviews — better than 35% of testers we track.
How much does the Innova 3320 Auto-Ranging Digital Multimeter cost?
It is currently $35.38 — mid-tier pricing for testers.
How does the 3320 Auto-Ranging Digital Multimeter compare to other testers?
The category's most-reviewed alternative is the AstroAI Digital Multimeter Tester 2000 Counts (4.5/5, 54,848 reviews, $14.59). The 3320 Auto-Ranging Digital Multimeter carries a Mubboo Score of B+ vs A+.
Sources & References
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-16) and may change.