Innova
INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black
Bottom line: The INNOVA 3320 Auto-Ranging Digital Multimeter ($35.38 on Amazon as of 2026-10-21 16:13 UTC): Auto-ranging picks the range for you, no dial hunting mid-measurement.
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*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Auto-ranging picks the range for you, no dial hunting mid-measurement
- ✓ 10 MegOhm input impedance protects vehicle ECU circuits during testing
- ✓ Color-coded LEDs read battery health green/yellow/red at a glance
- ✓ UL certified for both automotive and household electrical work
Cons
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
The INNOVA 3320 is an auto-ranging digital multimeter built for people who need answers fast without babysitting a range dial. Set the function, touch the probes to the circuit, and the meter picks the correct measurement range itself, which matters when you are working under a hood or behind a panel with one hand on a probe. The 10 MegOhm input impedance is the specification that makes this Innova safe on modern vehicles: it draws almost no current from the circuit under test, so you are not risking damage to a vehicle's ECU while chasing a parasitic draw. Color-coded LEDs give an…
SpecPicks Verdict
SpecPicks scored INNOVA 3320 Auto-Ranging Digital Multimeter using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. Innova's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Is the INNOVA 3320 safe to use on a modern car's electronics?
Yes. It has a 10 MegOhm input impedance, which draws minimal current from the circuit and is specified to prevent damage to the vehicle's ECU. It is also UL certified for automotive and household use.
Do I have to select the voltage range before measuring?
No. The 3320 is auto-ranging, so it selects the correct measurement range automatically once you choose the function. There is a single-setting resistance function covering AC and DC voltage.
Can I use it to test regular household batteries?
Yes. Color-coded LEDs show battery charge status directly: green means good, yellow means weak, and red means replace, so you do not have to interpret a raw voltage reading.
Does it come with test leads?
Yes, attachable test leads are included with the meter. Check the current product listing for the full accessory contents, as packaging can vary.
What household jobs can it handle besides car work?
It is rated for household outlets, fuses, wiring, and general-purpose batteries, in addition to vehicle batteries, charging systems, and automotive circuits.
Key Features
- UL certified product designed to safely and accurately troubleshoot a variety of automotive and household electrical problems
- Auto-ranging scales automatically selects correct measurement range and eliminate the need to dial in the correct range when making electronic measurements
- Features large digital display and color coded LED's to easily check the charge status of batteries
- Single-setting resistance function for AC and DC voltage
- 10 MegOhm input impedance; safe for electrical and automotive use; prevents damage to the vehicle’s ECU
Full Specifications
| Brand | Innova |
|---|---|
| Color | Red & Black |
| Model | 3320 |
| Style | 3320 |
| Style Name | 3320 |
| Unit Count | 1.0 Count |
| Part Number | 3320 |
| Power Source | Battery Powered |
| Item Type Name | Multimeters & Analyzers |
| Item Dimensions | 2 x 10 x 5 inches |
| Measurement Type | Multimeter |
| Specification Met | UL |
| Compatible Devices | Automotive electrical components, household electrical components, batteries, solar panels, fuses, wiring, and other electrical circuits |
| Included Components | Auto-Ranging DMM(10MegOhm)/UL |
| Warranty Description | 1 year limited |
| Global Trade Identification Number | 00042173033201 |
Ready to buy?
INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.
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