INNOVA 3340 Automotive Digital Multimeter Review

The INNOVA 3340 Digital Multimeter is a professional-grade product designed to help you identify engine issues. It can be used for a wide range of applications including the verification of voltage to the light sockets, inspection of battery voltage, troubleshooting relays, measurement of RPM (vehicle and inductive pickup), checking alternator output, and confirmation of electrical continuity.

The unit features an auto-shut off mode, which functions by automatically turning off the device after 30 minutes of inactivity for battery conservation. This and many other features that guarantee efficiency and protection are present in this product.

The succeeding paragraphs will further discuss the features and quality of the INNOVA 3340, which are reasons enough for you to include this in your toolkit.

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41IyyYOL1LAccurate Temperature Measurement with the Temperature Probe

With the INNOVA 3340 temperature probe, the user can easily and accurately measure the temperature of the vehicle, which is displayed in both Fahrenheit and Celsius on its LCD screen. This allows the user to determine if the car has an overheating problem.

There are many reasons for overheating and it includes losing the coolant. Leaks or evaporation leads to the losing of the coolant. Overheating can also be attributed to a broken thermostat, water pump, or pump gasket. With the use of the INNOVA 3340, you can confirm the reason for any malfunction in the vehicle caused by overheating.

Auto-Ranging for Faster Value Reading

The INNOVA 3340 features auto-ranging which eliminates the need to know the exact values of the capacitance, voltage, resistance, and other electrical values in the car. Even if you are knowledgeable in reading the values of these electrical components, you can still mix them up, especially if you are in a hurry and have poor eyesight. Through auto-ranging, however, you do not have to go through this hassle since the INNOVA 3340 finds the value for you.

INNOVA 3340 Features & Specifications

  • Professional-grade Digital Automotive Multimeter – UL Certified Product; efficient identification of engine problems
  • Numerous Applications – Checks alternator diodes, breaker points, duty progression, switches, solenoids, wiring, and many more
  • Temperature Probe – for accurate temperature measurement
  • Inductive RPM clamp
  • Comes with a Carrying Case – for storing the multimeter when not in use
  • Auto-ranging – for easier and faster value reading
  • Protective Auto Shut-off and Overload features
  • Test lead holders – allows for hands-free protection
  • Automatic zero adjustment
  • Reverse Polarity Protection
  • Minimum and Maximum hold buttons – enables saving of retried data LCD Display- for temperature display
  • Dual Temperature Measurement – Available in Fahrenheit and Celsius

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INNOVA 3340 Reviews & Ratings

The INNOVA 3340 is getting an increasing amount of attention from the auto shop and car owners with its 146+ reviews. Assessing customer feedback as well as our own inspection of the qualities and features of this multimeter, we give it a rating of 9.2/10 stars.

A lot of customers were delighted with the functionality and efficacy this multimeter provides. One customer said that this works great. All of its features functioned properly, according to him. Another customer said that he used it for motorcycle repair. He found it as a highly accurate device. He expressed that he was even surprised at how accurate it can get.

Other customers said that it was a perfect addition to their toolkit while one reviewer exclaimed that he would not hesitate to recommend this product to other shoppers.

Things to Improve

Even with the positive attention that the INNOVA 3340 has gotten, it is not a perfect device; it also has its minor flaws. One customer has commented that it was complicated to use. However, as the product says, it is intended for professional use. This is a case of misreading and misinterpreting the product description.

One customer commented that the accuracy of this device was not enough for him. He may have needed a more advanced multimeter, which has improved focus on the accuracy of the device more than it does with its other features. Still, for professionals and advanced users, the features and functions of this multimeter are useful and accurate enough in many applications.

The INNOVA 3340 does need some improving, as a matter of suiting the preference of other customers. But at its current version, it is still a good piece of multimeter since its amazing features are more valuable than its simple shortcomings.


The INNOVA 3340 multimeter is packed with many features great for efficiently identifying numerous problems for easier repair of cars and other compatible vehicles. For its features and quality, it is something worth adding to your garage or auto shop toolbox. Even if it is intended for advanced users, those who have enough experience in using such a device will still find this tool manageable to operate.

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