Edge Insight CTS3 Review

Everything You Need to Know About Edge’s Insight CTS3

Have you ever heard of a digital gauge display or a performance monitor? They are one of the few products that every truck owner can benefit from, regardless of make or model. As long as you have a 1996 or newer truck with an OBD2 port you can use one of these. How do they help you? These devices offer real-time data parameter monitoring, vehicle settings adjustment, and code reading/clearing capabilities. Edge products makes the Insight CTS2, which has been around for years and has proven itself to be one of the most reliable, capable, and versatile units available. I’ve had them on several of my trucks. Recently, Edge released their Insight CTS3, which is an updated model with even more features. 

Edge Insight CTS3 & Components
Edge Insight CTS3 Digital Gauge Display

Since I’ve been a big believer in the Insight CTS monitors for a long time, I reached out to Edge to see if I could get one to review. They obliged, and after 20,000 miles of driving and about 5 months of ownership, I’m ready to share my full Edge Insight CTS3 performance monitor review. Before I get into my review though, I wanted to breakdown all of its features so you know exactly how this unit can benefit you and your truck.

Edge Insight CTS3 Features

  • Real-Time Data Parameter Monitoring
  • Performance Testing
  • Highly Customizable Gauge Display
  • Pairing with Other Edge Devices
  • Code Reading and Clearing
  • Vehicle Customization & Settings Adjustment
Edge Insight CTS3 Different Views

Real-Time Data Parameter Monitoring

Real-time Data parameter monitoring is easily the most important function of the Edge Insight CTS3 monitor. In a matter of seconds you can select PIDS to monitor on your display such as Exhaust Gas Temperatures, Engine Coolant Temperatures, Engine Oil Temperature, Diesel Particulate Filter Status, and more. The PIDS that are available to monitor are dependent on your truck however. My 2019 Chevrolet Silverado 2500hd with the 6.6L L5P Duramax Diesel engine comes with a ton of sensors already installed from the factory.

This means I don’t have to add any auxiliary sensors or pyrometers to monitor things like EGTS. If you have an older truck, you may not be able to monitor all of these PIDS immediately because your truck didn’t come with any of sensors from the factory. If you want to monitor things like EGTS you just need to purchase the Edge EAS EGT KIT.

Edge EAS EGT Kit

Edge EAS EGT Kit

If your truck doesn’t come equipped from the factory with the ability to monitor EGTS, the Edge EAS EGT Kit is a must-have! It will allow you to add your own EGT monitoring device and it connects to your Insight CTS3.

With that being said, new trucks and old trucks alike may have factory sensors installed, but what they show is very limited. Without the Edge Insight CTS3 you’re pretty much limited to what your factory gauge display shows. On newer trucks you might be able to view slightly more information by flipping through screens, but it’s hard to keep track of everything. Edge’s Insight CTS3 lets you view all of these important parameters on one screen, making it significantly easier to keep track of everything.

Real-Time Data Parameter Monitoring
The most important Edge Insight CTS3 capability is real-time data parameter monitoring. You can view up to hundreds of different parameters and select which ones you want to display, all on the same screen.

Performance Testing

Many truck owners with Edge Insight CTS3 monitors buy other aftermarket accessories to make their trucks more capable and boost performance. Are you thinking about adding another performance mod? Want to see how it affects your 0-60 mph time or 1/4 mile time? The Edge Insight CTS3 insight offers performance testing capabilities, allowing you to measure performance in a variety of ways.

You can store results on a track ticket-style data sheet and also data log PID Data and export it. If you have custom tuning this is really useful information you can send the person that tunes your vehicle. It will allow them to modify the tunes and make adjustments to improve vehicle performance and reliability.

Highly Customizable Gauge Display

Before digital gauge displays and monitors like the Insight CTS3, you had use a bunch of individual old-school gauges if you wanted to monitor different temperatures and other parameters. Obviously it took up a lot more space, and it still wasn’t easy to keep an eye on every parameter while driving. The Edge Insight CTS3 lets you pick all the PIDs you want to monitor and puts them all on one screen, making it easy to keep track of everything while driving.

There are 20 different gauge layouts you can select, each offering a different view of parameters. You can move PIDs and select new PIDs on each of these different layouts. You can also change the background screen and the colors of every screen too, allowing you to put your own personal touch on your Insight CTS3.

Pairing With Other Edge Devices

The Edge Insight CTS3 isn’t just a digital gauge display, it can be a lot more. It can act as a hub, controlling other Edge products. Edge makes a variety of other products that can benefit your truck like rear-view cameras, tuners, and more that can be controlled by the Insight CTS3. In fact, I use my Insight CTS3 monitor to control the power levels on my Pulsar Tuner. You can even control accessories not made by Edge like air compressors or light bars by installing the EAS Power Switch upgrade. It allows to CTS3 to be used as a switch, saving you from having to install ugly switches in your dash.

Here are some of our favorite Edge products to pair your CTS3 with:

Edge License Plate Back-Up Camera

Does your truck lack a back-up camera? Easily add a back-up camera and connect it to your Edge Insight CTS3 with the License Plate Back-Up Camera.

EAS Power Switch

Control up to two accessories from your Insight CTS3 with the EAS Power Switch.

EAS Data Logging Kit

Want more sensors and data parameter monitoring than even the most advanced trucks can offer? Check out the EAS Data Logging Kit. It comes with two extra EGT sensors, two boost sensors, and two temperature sensors.

Edge Pulsar Tuner

If you have a 2017-2019 6.6L L5P Duramax the Edge Pulsar is an easy way to add up to 90 Horsepower & 156 lb-ft of torque.

Code Reading and Clearing

When any modern vehicle experiences an issue, there is usually a diagnostic trouble code, or DTC, that displays a message to help you identify what the problem is. Shops have expensive code readers that they use to help identify these DTCSs. There’s no need to pick up one of these devices though, when the Edge Insight CTS3 gives you code reading and clearing capabilities.

Vehicle Customization & Settings Adjustment

Another noteworthy feature of the Insight CTS3 Monitor is that it allows you to customize and change the settings on your vehicle. It depends what features your truck has, but on my L5P I can adjust tire pressure monitoring settings, the speed limiter, and more!

Now That you Know the Features…

Now that you know the features of the Insight CTS3, it’s time to hear my thoughts and experiences after having the unit on my truck for over 20,000 miles and 5 months. Here is my full Edge Insight CTS3 Review.

Edge Insight CTS3 Review


The Good

After using multiple different digital gauge displays in my trucks, I was impressed with how well the CTS3 works. It loads very fast, you can change screens very easily, and the touch screen display works seamlessly. On many monitors, the touch screen doesn’t function well, making it hard to select options or change screens. The CTS3’s display works better than any monitor I’ve ever had. It’s even a huge improvement over the CTS2, the previous model.

Another important performance attribute is how easy this unit is to navigate. You can switch between gauge displays by swiping your finger to the side, or navigate to most other features by swiping up or down. This reduces the time it takes to use other functions because you don’t have to return to the main menu to access other features.

Last but not least, the Edge Insight CTS3 offers impressive performance because of its wide range of features. There isn’t another monitor I’ve come across that offers the same amount of features and customization. This unit gives you real-time data parameter monitoring, code reading/clearing capabilities, performance testing, and vehicle settings adjustment. It does all these things while also being highly-customizable, giving you the ability to change gauge displays to your liking, pick your own PIDs to display, and even adjust colors and upload your own background pictures.

The Bad

The main drawback of the Edge Insight CTS3 when it comes to performance is that it lacks the ability to tune your vehicle. If you want those capabilities, you need to purchase the Edge Evolution CTS3 which has the benefits of this monitor, with the adding tuning capabilities. Tuning isn’t available for every vehicle though, so make sure they have a unit compatible with your vehicle before purchasing one.


The Good

Since purchasing the Insight CTS3 I’ve been in really warm climates and really cold climates. In both, the unit has continued to work, even when it was exposed to extreme heat or extreme cold. I’ve had other products in my truck where the monitor literally stopped working after a hot Florida day when it was left on my windshield. After 5 months of ownership, the Insight CTS3 in my truck continues to be reliable digital gauge display I can count on.

The Bad

While my Insight CTS3 Insight always works, sometimes it will glitch when it turns on initially. It will start up and go to the gauge display but it will be frozen. By simply unplugging the unit from the OBD2 port and plugging it back in, it reboots the unit, fixing it. It can still be annoying at times.


The Good

From the moment you unbox the Edge Insight CTS3 to you actually using it, its superior design compared to other digital monitors is evident. It features one of the largest screens and it comes in a package that is pretty much all inclusive. A suction cupmounting solution is included, which is something many other digital gauge displays don’t include. It also offers significantly easier updates than many units because it can be updated wirelessly when connected to WiFi. 

Unlike the Insight CTS2, the CTS3’s exterior design features a sleeker look, achieved by using rounded edges and a thinner frame. It has a more modern look and definitely looks like a premium product when compared against competing products. The CTS3 also installs extremely easy, which is a nice feature when traveling. You can disconnect the monitor from the suction-cup mount in a matter of seconds.

My favorite design element is that Edge designed the Insight CTS3 to be compatible with other products that they designed. They even have a switch kit that allows you to control up to two accessories through the Insight CTS3. This is very unique amongst digital gauge displays available in the market today. The Insight CTS3 can also be used to switch power levels on a variety of tuners for different trucks too. 

The Bad (NONE)


The Edge Insight CTS3 is a bargain at a price of $400. Code reading/scanning devices can easily cost over a $100 and if you look at all of the other features this device gives you, it’s clear there is a ton of value in this product. This is especially true if purchase an Evolution CTS3, the variant of this device that comes with tunes for around $600-$700. Tunes can often cause more than $500 by themselves.

Overall Thoughts

If you want the best digital gauge display on the market, the Edge Insight CTS3 is it. It offers greater personalization than any other unit, it offers more gauge displays with greater PID monitoring control, and it has code clearing and reading capabilities that make it easy to figure out the reason for an unexplained check engine light or a DTC code. It has an excellent composition, it looks like a premium product, and with all these features and its reliability it still only costs around $400. If there was a product everyone should have on their truck, this is it.

The only real downside of the Edge Insight CTS3 is that it lacks the functionality to tune your vehicle. Instead, you need to purchase the Evolution CTS3 for your truck, Pulsar (For the L5P Duramax), or another tuner. It can also glitch sometimes during start-up, but it’s easily resolved by unplugging the unit and then plugging it back in.

If you were to ask me whether or not you should buy the Edge Insight CTS3 digital gauge display, the answer for me is a definite yes. If you are interested in purchasing this unit, consider buying it from one of my affiliate links in this post. It helps support Truck Insiders by giving us a small commission when you buy a product. Thanks in advance!

Edge Insight CTS3 Digital Gauge Display

Buy it Now

Buy the Edge Insight CTS3 by clicking HERE.

Add-On Accessories to pair with your CTS3

  • Edge License Plate Back-up Camera #98203
  • Edge EAS Power Switch #98609
  • EAS Data Logging Kit #98618
  • EAS EGT Kit #98620

Edge Insight CTS3 FAQS

How Much Does the Insight CTS3 cost?

The average retail cost of the Edge Insight CTS3 is $400-$450.

What is the Edge Insight CTS3?

The Edge Insight CTS3 is a digital gauge display and performance monitor that offers real-time data parameter monitoring, trouble code reading/clearing, and a number of other features for your truck. It plugs in to the OBD2 port and easily mounts on the windshield of your vehicle.

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