---
product_id: 1139249
title: "INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black"
brand: "innova"
price: "409 Lei"
currency: RON
in_stock: true
reviews_count: 7
category: "Innova"
url: https://www.desertcart.ro/products/1139249-innova-3320-auto-ranging-digital-multimeter-red-and-black
store_origin: RO
region: Romania
---

# Auto-ranging for fast, precise voltage & resistance Color-coded LED battery tester with load test 10 MΩ input impedance protects vehicle ECU INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black

**Brand:** innova
**Price:** 409 Lei
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your diagnostics with speed, safety, and savvy precision!

## Quick Answers

- **What is this?** INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black by innova
- **How much does it cost?** 409 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/1139249-innova-3320-auto-ranging-digital-multimeter-red-and-black)

## Best For

- innova enthusiasts

## Why This Product

- Trusted innova brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built for Safety:** 10 MegOhm input impedance safeguards sensitive automotive electronics and household circuits.
- • **Durable & Reliable:** UL certified with protective rubber corner guards—built to withstand drops and daily hustle.
- • **Effortless Precision:** Auto-ranging scales instantly select the perfect measurement range—no manual dialing needed.
- • **Hands-Free Convenience:** Includes attachable test leads, holders, and a stand for multitasking without missing a beat.
- • **Smart Battery Health Check:** Color-coded LEDs reveal battery status at a glance—green for go, yellow for caution, red for replace.

## Overview

The INNOVA 3320 Auto-Ranging Digital Multimeter is a UL certified, battery-powered tool designed for quick, accurate troubleshooting of automotive and household electrical systems. Featuring auto-ranging scales, a unique battery load tester with color-coded LEDs, and a high 10 MΩ input impedance for ECU protection, it combines professional-grade functionality with rugged durability. Compact and user-friendly, it’s the go-to multimeter for millennials who demand efficiency and reliability without breaking the bank.

## Description

The INNOVA 3320 is an Auto-Ranging Multimeter designed to accurately troubleshoot a variety of automotive and household electrical problems. The auto-ranging scales eliminate the need to dial in the correct range when making electronic measurements. The 10 MegOhm input is safe for automotive and household uses (i. e., household outlets, fuses, wiring, general-purpose batteries, vehicle battery and charging system, automotive circuits and more). The color-coded LEDs allow you to quickly check household batteries (green = good, yellow = weak and red = replace). Includes attachable test leads, holders and stand for hands free use and features protective rubber corner guards for drop protection. The INNOVA 3320 has a single setting resistance function for AC and DC voltage.

Review: Perfect for almost all home handyman uses - ---10-23-2017 EDIT--- I still have all 3 of my Innova 3320 multimeters, and they are still working great. Each one gets used a couple times a month on average, so they have more than paid for themselves over what has now been 6+ years of ownership. I also haven't felt a need to upgrade them in that time, so these 3 meters along with a 4th multimeter (that has a clamp style ammeter that I need occasionally) are all I own right now. There is a small quirk I have noticed with this meter, so I figured I would mention it in case anyone else has the same issue. Sometimes one of my meters will start giving a reading that is a bit erratic, almost like it's having a hard time knowing what it's supposed to do. Alternately, the autoranging feature will sometimes also become a bit sluggish in coming up with a final result to display. I mainly notice it when I'm working in DCV mode, and the issue pops up now and then on all 3 of my meters. Whenever one of my meters begins having this issue, a quick full rotation of the mode selection dial back and forth 5-6 times fixes the problem right up. I'm guessing there must be a little bit of dirt working down onto the sliding dial contacts (located directly underneath the mode selection dial) causing a poor electrical connection there over time. The dirt is probably getting in via the small gap around the dial itself. That dirt/residue is being scraped off by the sliding contacts when the dial is rotated back and forth a few times so that's why everything starts working perfectly again. Another thing I thought I would mention is that for the last couple years I have been using Eneloop rechargeable AA batteries in all 3 of my meters instead of regular disposable alkaline batteries. My meters all run perfectly on the Eneloops even though rechargeable AA batteries only put out 1.2vdc instead of 1.5vdc. ---END OF EDIT--- This is a great meter as long as you are getting it for the right tasks. The auto ranging feature works great as long as you are measuring something of a decent value whether it be resistance, voltage, etc. This is not the meter you would want for doing sensitive electronics, fine adjustments of electrical components, computer work, etc. This meter will not be accurate enough and consistent enough to be of much use for those types of applications. This meter is absolutely amazing for its price when it comes to doing (120vac) home electrical, automotive (12vdc) electrical troubleshooting, furnace troubleshooting (24vac), solar installation testing and troubleshooting (12-48vdc), etc. For electrical maintenance and installation tasks I almost exclusively use continuity, voltage, and resistance measurements to look for broken circuits, check for voltage loss across terminals due to corrosion, verify correct wiring after a new installation, etc. This meter also works great for testing automotive sensors for proper function. Most automotive sensors have resistance levels in the 400 to 700 ohm range when operating properly and this meter measures levels like that very consistently and accurately. Where this meter does falter a little is when you need to measure a very low resistance level or a very high level of resistance accurately. The auto ranging feature gets a little confused or slow, and is not good at giving the same result if the same test is repeated several times. The reason I am giving this meter 5 stars is because the issues with this meter are really not issues to me, because the situations that cause those issues can usually be worked around and 99% of the things I use this meter for work accurately and rapidly. I have used many high quality fluke meters and they work great in all situations, but they are also a lot more expensive. I will gladly give up 1% usability for a meter that is one fifth the price. I have also used meters that are cheaper than fluke meters and are still accurate in all situations, but they require you to set the range for every test done which adds time to everything and if you are wrong you can blow fuses, etc. This meter is fast, because I just turn the dial to the right mode, put the leads on and get a result I can use and I can move on. Another really nice feature I have never seen on another meter is the battery tester. It is great for rapidly testing to see if a spare battery you find in a drawer is a new one that became separated from its' package, or if it is a dead one that got lost on the way to the recycling bin. This meter is also nice because if you accidentally damage it or lose it you are not out much money. This meter works so perfectly for the tasks I need it for that I have bought 3 of them just in case they stop selling them, because there are no other meters I like as much as this one that cost less than $75. Then I am able to keep one in the car at all times for emergencies, one in the garage for working on cars, and one inside the home that stays nice and clean for home related tasks.
Review: I completly Love this Meter!! - This little meter is outstanding! I own a Fluke DMM 179 and of course that meter is top of the line. But would you believe this Equus 3320 is 99% spot on with its readings when compared to a recently calibrated Fluke 179!! I compared measurements with the Equus 3320 and the Fluke 179, in AC Voltage, DC Voltage, Resistance, and DC voltage for the Equus in the Battery test modes. It had literally almost identical readings to the Fluke! The circuit board appears to use mostly prime spec electrical components, so I suspect it will remain accurate for a long time as long as it's not abused. This meter sells on desertcart for less than $20, and has auto ranging. This means instead of having to dial in the max value manually the meter figures out what DCV range to use (if you were measuring DC voltage for example). It's the same deal for other measurements like resistance, AC Voltage, etc, just set to that measurement type and the meter figures out the correct max range. Most auto ranging meters below $99 have slow auto ranging acquisition speed (this is the time it takes for the meter to figure out what range to use). Many of the cheaper auto ranging meters take several seconds to figure out the correct range and then display the measurement. Not the $19 Equus 3320, it was just as fast as the Fluke 179, which is a second or less in the voltage measurements, and under 2 seconds for resistance (resistance auto ranging takes slightly longer on all meters because the meter must send a small amount of current across the device under test first before trying to acquire the range). The battery test function (which my Fluke 179 does not have) is the main reason I purchased this meter. The battery test goes beyond just measuring the voltage of the battery any cheap meter can do that all day long. The battery test function in the 3320 puts the battery under a current load (10 Milliamps for both 1.5v and 9v batteries) and then measures the voltage. This gives you a much better idea of if the battery is really good or not and will really perform in your devices. Some batteries on a bare voltage test show good voltage, but that good voltage will quickly drop to unusable levels once the battery is put under load. So testing batteries with a meter that has a battery test function is far superior to just checking its voltage. This feature alone makes the $19 price for this meter well worth it! As a few other reviewers have said, it can only measure 200 Milliamps of current in AC (whereas DC can measure up to 10 Amps). Most other multimeters can measure 10 amps of DC or AC current. So if you are looking to measure any substantial AC current this is the wrong meter. In fact for any current measurements I recommend a current clamp like the ExTech 623 or ExTech 380942 since you can clamp right over a live insulated wire (while the circuit is operating) and take your measurement. With any standard multimeter (like the 3320) you have to wire it in line with the circuit first (with the circuit powered off) and then you can take your measurement. But if you are looking for a compact, accurate multimeter for your garage or home (where you will not need AC current measurements) then look no further you cannot beat the accuracy, auto ranging speed, and the price of the Equus 3320. ----------------------------------------------------- UPDATE 11-19-2015: A couple of reviewers wanted a testing update now that I've owned this meter almost 5 years. It's still pretty accurate in almost everything I tested (except AC volts below 50). This time around I setup a pretty extensive test; testing the Innova / Equus 3320 against 2 different Fluke meters (the Fluke 179 as before and the Fluke 87-5). Both of the Fluke meters are top of the line in quality and well known for maintaining accurate readings over long periods of time. So I wanted to test the 3320 against 2 top of the line meters to make sure 1 of the Fluke meters wasn't out of spec giving inaccurate readings. The readings on both Fluke meters were identical (or almost identical) in all tests below. Also this time around, I tested a lot more ranges and values. The 3320 did pretty well against the 2 Fluke meters. The only noticeable variance the 3320 showed was when measuring lower AC voltages (below the standard household 120 volts). One other thing to note is the range switch on the 3320 seemed a bit looser than when I originally purchased the meter. If I played with it when it was on a range (especially the AC volts range), the readings on the meter would change and then re-stabilize after I stopped messing with it. That's definitely something to watch for on your meter, especially if you use it often. For me I've only occasionally used this meter since I purchased it in early 2011. I keep it in my small network installation tool bag that I use when doing office network installations. It's small, and comes in handy for continuity testing, and basic voltage testing, as well as battery testing (as mentioned in my original review). However, as you'll see in the test results below, Fluke is absolutely the way to go if you want accurate readings you can count on year after year (the Fluke 179 & 87-5 are almost bang on, after many years of continuous use). So I use the Fluke meters most of the time when I am: 1) Troubleshooting auto electrical systems, 2) Doing electrician work around the house or, 3) Electronics bench work. But again for a $20 meter, the 3320 sure gives you a lot. Below are all the values and ranges I tested. The values shown in each meter's column, is what that meter was displaying during the test. In all tests except resistance, all 3 meters were hooked up to the same setup on my electronics bench, and tested simultaneously to ensure the most accurate readings I can create outside of a NIST certified lab. I used a couple of stable bench power supplies I have for most of the testing, and then a standard AA and 9volt battery for the battery test range on the 3320. For the resistance tests, I used several resisters (the same resistor for each value was used on all 3 meters). More accurate and controlled testing can be done, but you would really need expensive laboratory test equipment that is too expensive for most home electronics benches. The tests below however, give us a reasonable idea of how the 3320 is doing 5 years later. All values shown in the rows are in the same measurement range as shown in the left most column for that row. For example if the left most column says mA for milliamps, then all values in that row are also in mA. If the left most column is KO (for Kilohms) then all the values in that row are also Kilohms. Abbreviations are as follows: V = Volts mA = Milliamps A = Amps O = Ohms KO = Kilohms MO = Megaohms Now on to the test results! DC_Volts_____Fluke_87-5_____Fluke_179_____Innova_3320 ------------------------------------------------------------------------------------------ 1.5__________1.500__________1.500_________1.494 16___________16.00__________16.00_________15.95 30___________30.01__________30.01_________29.9 50___________50.02__________50.02_________49.9 Battery_Test________Fluke_87-5_____Fluke_179_____Innova_3320 ---------------------------------------------------------------------------------------------------- 1.5_volt_AA_________1.577__________1.577_________1.570 9_volt______________9.45___________9.45___________9.41 AC_Volts_____Fluke_87-5_____Fluke_179_____Innova_3320 ------------------------------------------------------------------------------------------- 30___________30.53__________30.54_________22.8 45___________45.00__________45.00_________41.9 122__________122.0__________122.1_________121.4 DC_Current_____Fluke_87-5_____Fluke_179_____Innova_3320 -------------------------------------------------------------------------------------------- 90_mA__________90.0___________90.0__________89.9 190_mA________189.9__________189.9__________190.3 1_A____________1.019__________1.019__________1.011 5_A____________4.999__________5.001__________5.0 9.8_A___________9.79___________9.8___________9.82 Resistance_____Fluke_87-5_____Fluke_179_____Innova_3320 -------------------------------------------------------------------------------------------- 100_O__________99.9___________99.8_________99.8 2.2_KO_________2.198__________2.199________2.19 100_KO________100.3__________100.4________100.5 4.7_MO________4.710__________4.711_________4.70 10_MO_________10.19__________10.19________10.17

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000EVYGZA |
| Batteries | 1 AAA batteries required. (included) |
| Best Sellers Rank | #42,748 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #69 in Multi Testers |
| Brand | Innova |
| Color | Red & Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (7,519) |
| Date First Available | April 28, 2005 |
| Global Trade Identification Number | 00042173033201 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8 ounces |
| Item dimensions L x W x H | 2 x 10 x 5 inches |
| Item model number | 3320 |
| Manufacturer | INNOVA |
| Manufacturer Part Number | 3320 |
| Measurement Type | Multimeter |
| Model | 3320 |
| OEM Part Number | 3320 |
| Power Source | Battery Powered |
| Product Dimensions | 2 x 10 x 5 inches |
| Specification Met | UL |
| Style | 3320 |
| UPC | 001910645411 666669796113 798804832315 521227772056 077344764820 031112449586 071040126067 421730332016 069060059328 706949169272 601000676778 050005685832 604945280994 522536500354 971477621855 042173033201 |

## Product Details

- **Brand:** Innova
- **Color:** Red & Black
- **Item Weight:** 0.5 Pounds
- **Power Source:** Battery Powered
- **Style:** 3320

## Images

![INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black - Image 1](https://m.media-amazon.com/images/I/81w4giNVNoL.jpg)

## Questions & Answers

**Q: I am searching for current leak in a boat (12v battery).  Will this dial down to low enough amps to diagnose?  Thanks.**
A: Yes, the Innova is great for finding parasitic leaks in boats and cars. Turn everything off..... EVERYTHING and then disconnect the negative battery cable. Insert the meter in series with the neg bat terminal and the end of the cable. If there is a current leak it will show on the meter when it is set on the AMPS function. Becareful that you don't turn anything on when the meter is connected because the AMP mode is not fused. If a current reading shows on the meter start pulling fuses and disconnecting devices until the reading drops to zero therefore isolating the problem

**Q: Can I use this meter to test for bad circuit breakers at electrical panel or electrical outlets at home?  I'm newbie; want learn how to use.  Thank u!**
A: I would advise against it.  This is only a CAT 2 rated meter.  That means the internal safety features are not sufficient to handle the higher potential voltage and energy that could come about at a meter panel.  http://www.ni.com/white-paper/5019/enYou really want a CAT 3 meter if you want to measure any live breaker panels.If you are going to test for bad circuit breakers that are disconnected from the live wiring then you could use this meter to check for continuity and the like.  Do not use this meter on anything more powerful than a wall outlet.  CAT 3 meters are available for not much more money.

**Q: What's the lowest ohm reading it is capable of? 0.01? 0.1? 1.0?**
A: It may have 3 digits but it can not accurately measure milli-ohms, nor can any other meter that is not using a 4 wire probe setup and one that costs at least several hundred dollars. There is so much involved in getting milli-ohm accuracy I could write for hours, for example just the pressure and angle of your probes, the proximity of the wires to themselves, other metal object, flex of the probes, the fitting of probes in the meter, and thats just 1/10th of probe issues, then take in account of the power supply related issues, pcb design issues a to d conversions and no way can a 18$ meter give accurate or even relative accurate milli-ohm readings. It is just a common marketing ploy.

**Q: Does this unit have CONTINUITY testing to determine which are the traveler wires in a 3-way switch outlet? It has a HORN icon which looks like it would beep if continuity is foun (e.g. the travelers going from one to the next switch box) but I don't see CONTINUITY testing in the features list. Thanks!**
A: I don't know enough about residential wiring to answer your question, but yes, the HORN icon is what you select for continuity testing, and it beeps when the circuit is complete.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect for almost all home handyman uses
*by J***Y on March 29, 2011*

---10-23-2017 EDIT--- I still have all 3 of my Innova 3320 multimeters, and they are still working great. Each one gets used a couple times a month on average, so they have more than paid for themselves over what has now been 6+ years of ownership. I also haven't felt a need to upgrade them in that time, so these 3 meters along with a 4th multimeter (that has a clamp style ammeter that I need occasionally) are all I own right now. There is a small quirk I have noticed with this meter, so I figured I would mention it in case anyone else has the same issue. Sometimes one of my meters will start giving a reading that is a bit erratic, almost like it's having a hard time knowing what it's supposed to do. Alternately, the autoranging feature will sometimes also become a bit sluggish in coming up with a final result to display. I mainly notice it when I'm working in DCV mode, and the issue pops up now and then on all 3 of my meters. Whenever one of my meters begins having this issue, a quick full rotation of the mode selection dial back and forth 5-6 times fixes the problem right up. I'm guessing there must be a little bit of dirt working down onto the sliding dial contacts (located directly underneath the mode selection dial) causing a poor electrical connection there over time. The dirt is probably getting in via the small gap around the dial itself. That dirt/residue is being scraped off by the sliding contacts when the dial is rotated back and forth a few times so that's why everything starts working perfectly again. Another thing I thought I would mention is that for the last couple years I have been using Eneloop rechargeable AA batteries in all 3 of my meters instead of regular disposable alkaline batteries. My meters all run perfectly on the Eneloops even though rechargeable AA batteries only put out 1.2vdc instead of 1.5vdc. ---END OF EDIT--- This is a great meter as long as you are getting it for the right tasks. The auto ranging feature works great as long as you are measuring something of a decent value whether it be resistance, voltage, etc. This is not the meter you would want for doing sensitive electronics, fine adjustments of electrical components, computer work, etc. This meter will not be accurate enough and consistent enough to be of much use for those types of applications. This meter is absolutely amazing for its price when it comes to doing (120vac) home electrical, automotive (12vdc) electrical troubleshooting, furnace troubleshooting (24vac), solar installation testing and troubleshooting (12-48vdc), etc. For electrical maintenance and installation tasks I almost exclusively use continuity, voltage, and resistance measurements to look for broken circuits, check for voltage loss across terminals due to corrosion, verify correct wiring after a new installation, etc. This meter also works great for testing automotive sensors for proper function. Most automotive sensors have resistance levels in the 400 to 700 ohm range when operating properly and this meter measures levels like that very consistently and accurately. Where this meter does falter a little is when you need to measure a very low resistance level or a very high level of resistance accurately. The auto ranging feature gets a little confused or slow, and is not good at giving the same result if the same test is repeated several times. The reason I am giving this meter 5 stars is because the issues with this meter are really not issues to me, because the situations that cause those issues can usually be worked around and 99% of the things I use this meter for work accurately and rapidly. I have used many high quality fluke meters and they work great in all situations, but they are also a lot more expensive. I will gladly give up 1% usability for a meter that is one fifth the price. I have also used meters that are cheaper than fluke meters and are still accurate in all situations, but they require you to set the range for every test done which adds time to everything and if you are wrong you can blow fuses, etc. This meter is fast, because I just turn the dial to the right mode, put the leads on and get a result I can use and I can move on. Another really nice feature I have never seen on another meter is the battery tester. It is great for rapidly testing to see if a spare battery you find in a drawer is a new one that became separated from its' package, or if it is a dead one that got lost on the way to the recycling bin. This meter is also nice because if you accidentally damage it or lose it you are not out much money. This meter works so perfectly for the tasks I need it for that I have bought 3 of them just in case they stop selling them, because there are no other meters I like as much as this one that cost less than $75. Then I am able to keep one in the car at all times for emergencies, one in the garage for working on cars, and one inside the home that stays nice and clean for home related tasks.

### ⭐⭐⭐⭐⭐ I completly Love this Meter!!
*by N***R on March 18, 2011*

This little meter is outstanding! I own a Fluke DMM 179 and of course that meter is top of the line. But would you believe this Equus 3320 is 99% spot on with its readings when compared to a recently calibrated Fluke 179!! I compared measurements with the Equus 3320 and the Fluke 179, in AC Voltage, DC Voltage, Resistance, and DC voltage for the Equus in the Battery test modes. It had literally almost identical readings to the Fluke! The circuit board appears to use mostly prime spec electrical components, so I suspect it will remain accurate for a long time as long as it's not abused. This meter sells on Amazon for less than $20, and has auto ranging. This means instead of having to dial in the max value manually the meter figures out what DCV range to use (if you were measuring DC voltage for example). It's the same deal for other measurements like resistance, AC Voltage, etc, just set to that measurement type and the meter figures out the correct max range. Most auto ranging meters below $99 have slow auto ranging acquisition speed (this is the time it takes for the meter to figure out what range to use). Many of the cheaper auto ranging meters take several seconds to figure out the correct range and then display the measurement. Not the $19 Equus 3320, it was just as fast as the Fluke 179, which is a second or less in the voltage measurements, and under 2 seconds for resistance (resistance auto ranging takes slightly longer on all meters because the meter must send a small amount of current across the device under test first before trying to acquire the range). The battery test function (which my Fluke 179 does not have) is the main reason I purchased this meter. The battery test goes beyond just measuring the voltage of the battery any cheap meter can do that all day long. The battery test function in the 3320 puts the battery under a current load (10 Milliamps for both 1.5v and 9v batteries) and then measures the voltage. This gives you a much better idea of if the battery is really good or not and will really perform in your devices. Some batteries on a bare voltage test show good voltage, but that good voltage will quickly drop to unusable levels once the battery is put under load. So testing batteries with a meter that has a battery test function is far superior to just checking its voltage. This feature alone makes the $19 price for this meter well worth it! As a few other reviewers have said, it can only measure 200 Milliamps of current in AC (whereas DC can measure up to 10 Amps). Most other multimeters can measure 10 amps of DC or AC current. So if you are looking to measure any substantial AC current this is the wrong meter. In fact for any current measurements I recommend a current clamp like the ExTech 623 or ExTech 380942 since you can clamp right over a live insulated wire (while the circuit is operating) and take your measurement. With any standard multimeter (like the 3320) you have to wire it in line with the circuit first (with the circuit powered off) and then you can take your measurement. But if you are looking for a compact, accurate multimeter for your garage or home (where you will not need AC current measurements) then look no further you cannot beat the accuracy, auto ranging speed, and the price of the Equus 3320. ----------------------------------------------------- UPDATE 11-19-2015: A couple of reviewers wanted a testing update now that I've owned this meter almost 5 years. It's still pretty accurate in almost everything I tested (except AC volts below 50). This time around I setup a pretty extensive test; testing the Innova / Equus 3320 against 2 different Fluke meters (the Fluke 179 as before and the Fluke 87-5). Both of the Fluke meters are top of the line in quality and well known for maintaining accurate readings over long periods of time. So I wanted to test the 3320 against 2 top of the line meters to make sure 1 of the Fluke meters wasn't out of spec giving inaccurate readings. The readings on both Fluke meters were identical (or almost identical) in all tests below. Also this time around, I tested a lot more ranges and values. The 3320 did pretty well against the 2 Fluke meters. The only noticeable variance the 3320 showed was when measuring lower AC voltages (below the standard household 120 volts). One other thing to note is the range switch on the 3320 seemed a bit looser than when I originally purchased the meter. If I played with it when it was on a range (especially the AC volts range), the readings on the meter would change and then re-stabilize after I stopped messing with it. That's definitely something to watch for on your meter, especially if you use it often. For me I've only occasionally used this meter since I purchased it in early 2011. I keep it in my small network installation tool bag that I use when doing office network installations. It's small, and comes in handy for continuity testing, and basic voltage testing, as well as battery testing (as mentioned in my original review). However, as you'll see in the test results below, Fluke is absolutely the way to go if you want accurate readings you can count on year after year (the Fluke 179 & 87-5 are almost bang on, after many years of continuous use). So I use the Fluke meters most of the time when I am: 1) Troubleshooting auto electrical systems, 2) Doing electrician work around the house or, 3) Electronics bench work. But again for a $20 meter, the 3320 sure gives you a lot. Below are all the values and ranges I tested. The values shown in each meter's column, is what that meter was displaying during the test. In all tests except resistance, all 3 meters were hooked up to the same setup on my electronics bench, and tested simultaneously to ensure the most accurate readings I can create outside of a NIST certified lab. I used a couple of stable bench power supplies I have for most of the testing, and then a standard AA and 9volt battery for the battery test range on the 3320. For the resistance tests, I used several resisters (the same resistor for each value was used on all 3 meters). More accurate and controlled testing can be done, but you would really need expensive laboratory test equipment that is too expensive for most home electronics benches. The tests below however, give us a reasonable idea of how the 3320 is doing 5 years later. All values shown in the rows are in the same measurement range as shown in the left most column for that row. For example if the left most column says mA for milliamps, then all values in that row are also in mA. If the left most column is KO (for Kilohms) then all the values in that row are also Kilohms. Abbreviations are as follows: V = Volts mA = Milliamps A = Amps O = Ohms KO = Kilohms MO = Megaohms Now on to the test results! DC_Volts_____Fluke_87-5_____Fluke_179_____Innova_3320 ------------------------------------------------------------------------------------------ 1.5__________1.500__________1.500_________1.494 16___________16.00__________16.00_________15.95 30___________30.01__________30.01_________29.9 50___________50.02__________50.02_________49.9 Battery_Test________Fluke_87-5_____Fluke_179_____Innova_3320 ---------------------------------------------------------------------------------------------------- 1.5_volt_AA_________1.577__________1.577_________1.570 9_volt______________9.45___________9.45___________9.41 AC_Volts_____Fluke_87-5_____Fluke_179_____Innova_3320 ------------------------------------------------------------------------------------------- 30___________30.53__________30.54_________22.8 45___________45.00__________45.00_________41.9 122__________122.0__________122.1_________121.4 DC_Current_____Fluke_87-5_____Fluke_179_____Innova_3320 -------------------------------------------------------------------------------------------- 90_mA__________90.0___________90.0__________89.9 190_mA________189.9__________189.9__________190.3 1_A____________1.019__________1.019__________1.011 5_A____________4.999__________5.001__________5.0 9.8_A___________9.79___________9.8___________9.82 Resistance_____Fluke_87-5_____Fluke_179_____Innova_3320 -------------------------------------------------------------------------------------------- 100_O__________99.9___________99.8_________99.8 2.2_KO_________2.198__________2.199________2.19 100_KO________100.3__________100.4________100.5 4.7_MO________4.710__________4.711_________4.70 10_MO_________10.19__________10.19________10.17

### ⭐⭐⭐⭐⭐ Review
*by T***N on December 29, 2024*

I bought this for my husband this is the 2 nd time we have had this brand. He can see everything the quality is great definitely recommend

## Frequently Bought Together

- INNOVA 3320 Auto-Ranging Digital Multimeter, Red & Black
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*Store origin: RO*
*Last updated: 2026-02-17*