Best Digital Angle Finder 2020: Review and Buying Guide

  • Last Modified: May 20, 2020

You’ve done a few woodworking or home improvement projects before so you invested in some really great power tools and basic measuring instruments. For measuring angles, you probably use a sturdy ruler, protractor, and triangle. These are good enough for casual construction projects like picnic tables, outdoor chairs, or sheds. But what if you want to create a wooden frame for your bathroom mirror? The joints where the horizontal and vertical parts of the frame should be measured with accuracy. If not, you will be wasting a perfectly good piece of wood – or you might have to bear the sight of not-so-perfectly joined angles when you look at yourself in the mirror. In this case, your basic measuring tools will most likely not deliver precise results. This is where digital angle finders come in handy.

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A digital angle finder is a woodworking tool that is usually made of aluminum. It basically consists of two rulers or blades joined together so that you can measure precise angles. There’s a locking mechanism to retain the measurement, and it can be used to determine the outside and inside angles of whatever it is that you are working on. Here, we will have a review of the best digital angle finders in the market right now to give you an idea of which tool to buy for your latest home improvement project.

Review: Top 10 Digital Angle Finders

1. AccuRemote Digital Electronic Magnetic Angle Gage Level/Protractor/Bevel Gauge

It might look different than the typical ones you will find in the market or online, but the AccuRemote Digital Electronic Magnetic Angle Gage does fall under the digital angle finder category. Also called a cube angle, it’s a portable digital angle gauge with a magnetic base. Unlike the aluminum types, it’s basically a square tool with an LCD display. Three magnets are embedded so the tool can be attached to any steel object. The display allows the user to view the angle in any direction, and the gauge’s measurement range is 360 degrees or four 90-degree angles. There are only three buttons with four controls so you can easily reset the angle to zero with just one press.

Accuracy: ± 0.2°

Battery: Standard 9V

Available at Amazon.com, the AccuRemote Digital Electronic Magnetic Angle Gage Level is a pretty straightforward tool that suits its purpose. It comes with its own protective storage bag.

2. Angle-izer Digital Angle Finder, 5 in.

The Angle-izer Digital Angle Finder has a more ‘traditional’ look than cube angles, but this one does the job well. The two rulers measure 5 inches in length, and provides full 360° angle measuring capabilities. There are two buttons on the LCD display: one for 0/On and the other one says REV for measuring reverse angles. Another good thing about this aluminum digital angle finder is that it has a circular base with a hinge mechanism that can be tightened or loosened. It helps retain the angle that you just measured, so you don’t have to do the same task twice in case there is unnecessary movement.

Battery: CR2032 Lithim-ion

Accuracy: ± 0.3°

Available at GeneralTools.com, whether you’re doing mechanical or woodworking projects, the Angle-izer Digital Angle Finder does a pretty good job of measuring interior and exterior angles accurately.

3. Bosch 4-in-1 Digital Angle Finder GAM 220 MF

If you want to purchase a tool that gives you more value for your money, check out the Bosch 4-in-1 Digital Angle Finder GAM 220 MF. Aside from being an angle finder, it also functions as a cut or miter calculator, level, and protractor. Among its standout features is the angle memory, so you can save measurements and apply the same one in different aspects of a construction project. The GAM 220’s body has IP 54 protection making it dust- and water-resistant. The buttons are clearly labelled; the illuminated display automatically flips for better readability; and it has simple and compound miter functions for saw angle settings. Perhaps the only downside to using this tool is that it can only measure angles from 0 to 220°, unlike other angle finders that can go all the way up to 360°.

Battery: Lithium-ion

Accuracy: ± 0.1°

Available at Amazon.com, the Bosch 4-in-1 Digital Angle Finder is a multifunctional tool that’s super-handy to have around. It comes with its own hard thermoformed case.

4. GemRed 82305 Digital Protractor Angle Finder Stainless Steel Ruler (200 mm/7 inch)

GemRed has a wide range of tools and the 82305 Digital Protractor Angle Finder is one of them. The body is made from stainless steel with a folded length of 12.6”. The measurements are laser etched and the rulers are longer than other digital angle finders. Functionality-wise, this GemRed model can be used to measure exterior and interior angles and lengths using either metric or imperial scales. The LCD has an easy-to-read display and there are only two buttons, making it easy to use. To retain measured angles, the tool has a good locking functionality. There are downsides to buying this product, though. The stainless-steel edges are sharp so you have to keep it away from children and you have to be extra careful while using it. You might also need to calibrate the gauge after every use.

Battery: CR2032 3V Lithium  

Accuracy: ± 0.3°

Available at Amazon,com, the GemRed 82305 Digital Protractor Angle Finder is a durable, reliable tool that you can use to measure exterior and interior angles. It comes with its own colored carrying case.

5. General Tools 10 in. L Digital Angle Finder

An obvious choice when it comes to digital angle finders is the General Tools 10 in. L Digital Angle Finder. Perfect for measuring angles even in the tightest of spots, the tool provides accurate results. It has: a large, easy-to-read LCD with a display that can be inverted; a locking mechanism; reverse-angle modes; and a tough, stainless-steel body. The hinge can be adjusted to provide measurements for a full 360°-angle and it is designed to deliver relative and absolute measurements.

Battery: Alkaline   

Accuracy: ± 0.3°

Available at AceHardware.com and Amazon.com, the General Tools 10 in. L Digital Angle Finder has everything that you’re looking for from an angle measuring device.

6. General Tools ToolSmart 12 in. L x 2 in. W Blueetooth Digital Angle Finder

Taking things one step further, General Tools designed another digital angle finder with Bluetooth connection. The ToolSmart 12 in. L x 2 in W Bluetooth Digital Angle Finder works as a protractor and level. The angle finder works up to a maximum of 225°, while the protractor feature is especially useful for cutting crown mouldings and taking flooring-related measurements in construction projects. The Bluetooth feature works by sending the inside and outside angle measurements to your phone once you download the ToolSmart app. It can also be used as a standard level and a 10.5” ruler. The downsides? Because of the Bluetooth feature, it’s a bit more expensive than similar tools in the market. Also, it does not provide a full 360° measurement – it can only measure angles of up to 225°.

Battery: CR2032 button cell   

Accuracy: ± 0.3°

Available at AceHardware.com and Amazon.com, the General Tools ToolSmart Bluetooth Digital Angle Finder is perfect for tech-savvy carpenters and mechanics.

7. Johnson Digital Angle Finder SS, 11 in. L

The Johnson Digital Angle Finder SS may look like any other angle measurement tool, but it does its job very well. It can measure the full 360° for interior and exterior angles, unlike other tools that offer less than that. It is also built in such a way that it can withstand heat, cold, or magnetic fields. This way, you can proceed with your construction project no matter what the environment is like. The LCD display is large and easy to read, while the stainless-steel rulers have clear inch/fractional/mm graduations. It may be a bit pricier than similar brands in the market, but considering that it can withstand varying temperatures, the price should be well worth it.

Battery: Lithium 

Accuracy: ± 0.1°

Available at Grainger.com, the Johnson Digital Angle Finder is a nifty tool to have for all your angle measurement needs.

8.Koolertoon Digital Angle Finder Protractor Ruler Digital Goniometer

The Koolerton Digital Angle Finder is power packed with features. It serves as a digital goniometer, a ruler, and an angle measurer. It has an LCD display with easy-to-read numbers that turns off automatically after six minutes of inactivity. The material is nylon glass fiber, making it one of the best variants in the market today. It can be used in cold and humid temperatures with accurate resolution. Unlike other angle finders, this one from Koolerton can measure a full 360° angle – whether it’s interior or interior. You can use the hold display of the screen for more accurate measurements. The material of the ruler is a standout, too, since it offers excellent rigidity, no deformation, and resistance to wear and tear.

Battery: CR2032

Accuracy: ± 0.3°

Available at Amazon.com, the Koolertoon Digital Angle Finder Protactor has one of the best ruler materials in the market, making it an excellent buy.

9. Stabila 39018 Tech 700 DA 18 inch Digital Electronic Angle Finder

Next is the Stabila 39018 Tech 700 DA 18-inch Digital Electronic Angle Finder. This is another multi-functional tool that serves as an electronic angle finder, miter gauge, and spirit lever. The display is easy-to-read and illuminated, while the miter gauge works by half-pushing just one button. After taking the measurement of an interior or exterior angle, you can easily ‘transfer’ it because of the reliable lock function. Perhaps the only con to buying this product is that it can only measure angles of up to 270°.

Battery: Lithium-ion

Accuracy: ± 0.1°

Available at Amazon.com, the Stabila 39018 Tech 700 Digital Electronic Angle Finder is a sturdy tool that provides accurate angular measurement. It comes with its own cloth protective bag.

10. Suncala Digital Angle Finder Protractor with Zeroing and Locking Function

Made from a sturdy stainless-steel body, the Suncala Digital Angle Finder Protractor with Zeroing and Locking Function is among the best in the market. As the name implies, it has a hold-and-zero in functionality when measuring relative and absolute angles. The rulers measure seven inches and there is an easy-to-read LCD display. Aside from measuring interior and exterior angles, the rulers help you measure lengths in metric and imperial scale. To ‘save’ measurements, there is a reset and lock function using the knob in the middle. The device has a long battery life which automatically turns off after five minutes of non-activity.

Battery: Lithium Polymer   

Accuracy: ± 0.2°

Available at Amazon.com, the Suncala Digital Angle Finder Protractor does an excellent and accurate job of measuring angles while also functioning as a straight and square ruler.  

Digital Angle Finder Buying Guide

Now that you already have an idea about the top 10 digital angle finders in the market today, how should you choose which one to buy? Here are a few factors to consider:

  • Type

As mentioned earlier, there’s the traditional L or V-type digital angle finder available – and the other type is the cube angle finder. Deciding which type to buy depends on your personal preferences and angle measurement needs.

  • Material

Stainless-steel is a good choice for sturdy angle finders, but there are also the more unique ones like nylon glass fiber. When deciding based on material, consider the types of woodworking or construction projects that you usually handle.

  • Accuracy

When it comes to measuring interior and exterior angles, accuracy is what you’re paying for. The range of accuracy for most angle finders is ± 0.1° to ± 0.3°. If the accuracy is ± 0.3°, it means that the results of the measurement may either be larger or smaller than the real angle by a difference of 0.3° maximum. If you will consider both the interior and exterior angles, the difference can be as much as 0.6°.

  • Angle Range

There are digital angle finders that can measure a full 360°, while others offer less than that.

  • Battery Life

For this, always check on the type of battery used, as well as the number of hours that it can last. For most LCD-type displays, there should be an automatic off function where the system shuts down after five or six minutes of inactivity. This feature lengthens the battery life.  

  • Display

Most displays are LCD type – make sure that the numbers are easy to read and the display is illuminated. There are also displays that automatically change orientation based on the position of the angle finder, for better readability.

  • Calibration

Just like any other measuring tool, digital angle finders need to be calibrated. There are some brands and models that need to be calibrated after every use, while others require occasional recalibration. Always check the user’s manual for this.

  • Cost

Of course, you should also consider your budget when buying a digital angle finder. Some are more expensive because of extra features like Bluetooth connection. Or, the materials that the rulers are made of may add to the price – especially if it’s stainless steel or nylon glass fiber.

A Final Word about Digital Angle Finders

When deciding which digital angle finder to buy, it pays to compare the top three or four variants in the market. Know which type works well for the projects that you usually do, then consider the material, price, angle range, etc. By taking these factors into consideration, you can buy the best digital angle finder that will help you accurately measure interior and exterior angles. Whether it’s a woodworking, home improvement, or even a mechanical project that you have, taking accurate angle measurements is important – and a digital angle finder will help you do just that.

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