Innova 3340 Multimeter Review

Innova 3340
  • Professional Automotive Multimeter designed to help pinpoint engine problems - UL Certified Product
  • Tests alternator diodes, duty cycle, solenoids, breaker points, wiring, switches, and more
  • Temperature probe, inductive RPM clamp and carrying case included
  • Features auto-ranging, auto shut-off and over-load protection
  • Includes test lead holders for hands-free protection

The Basics

Innova 3340 rates as the runner-up in our automotive digital multimeter review. Although this unit is a bit pricey, it is far cheaper than the Fluke 88V, and it has great tools for electrical diagnostics to provide a high-quality performance. 

It is light and portable, weighing only one pound with dimensions of 12.5 by 4.5 by 6.5 inches. 

Aside from being compact, it comes with a stand for hands-free use and a wrist strap.  This design makes the Innova 3340 incredibly easy to use. The user manual comes in three different languages namely English, Spanish and French.


Who can use this multimeter?

Everyone who owns a vehicle will find this unit an asset. As an experienced mechanic, the Innova 3340 will make operation on vehicles much easier by limiting the procedures. This way, not only will you be efficient, but you will also become reliable for customers. 

Vehicle users who can read and understand the procedure will also find the unit handy. However, if you are not an experienced technician, ensure you read the instructions religiously and stick to the guide strictly recommended in the manual. Failure to do this may lead to avoidable accidents while in operation.


This unit is considered the best digital multimeter with its ability to test many components of the vehicle- the alternator diodes, duty cycle, wiring, switches, breaker points and other components, unlike what its counterparts have to offer.

The Innova 3340 keeps a record of every bit of information you input by giving you the option to save your data for future reasons. This always comes handy in the event of an interruption. Instead of retesting components, you can easily refer to your saved data, thereby saving lots of time.

This unit protects against reverse polarity while working on the electrical outlets of your vehicle. Simply put, it reduces the level of hazard resulting from shock. 

The unit of temperature can be measured in both Fahrenheit and Celsius. This way, every customer is satisfied, even though there is a hardly a distinct preference between the two.

A major complaint from people is about replacing their multimeter quarterly or biannually. To tackle this problem, the auto shut-off feature and the overload protection ensure the durability of this unit. Not only will it function effectively, but the fear of having to replace your multimeter won’t loom over your head. It comes with a 1-year guarantee.

The auto-ranging feature helps to determine the current range of the electrical signal being measured, thereby dealing with repeatedly having to manually set the voltage, current or resistance range.

Things we didn’t like about this unit

In as much as the Innova 3340 sets the benchmark for multimeters, it is disadvantaged in a few ways. The temperature probe is faulty- it has a 10-degree error. The RPM is inconsistent. For a good accuracy, you will have to test the RPM reading severally to arrive at the best count. Also noted is the screen which isn’t bright enough for use in direct sunlight. 

The best way possible to avert horrible situations is to prepare for unforeseen circumstances. An automotive multimeter goes a long way to diagnosing and fixing problems you might encounter with your battery or engine. This multimeter can also be used for regular electric circuits.

With the added automotive features, the Innova 3340 is our clear value for money pick in the automotive multimeter category. If you can’t afford the Fluke 88V then go the Innova, you won’t be disappointed.

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