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GemRed Digital Angle Gauge (Green Backlight)

4.6 4.6 out of 5 stars 3,751 ratings
$24.99
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Purchase options and add-ons

  • GREAT REPEATABILITY - This angle gauge is designed with accuracy of ± 0.2° and the resolution is 0.1°. The measuring range: 0 to 360° (4*90°). Display unit: DEGREE only. It provides convenience in woodworking, construction, machinery, telecommunications, automobile etc. It is pre-calibrated in factory.
  • STRONG ALUMINUM FRAMEWORK & MAGNETIC FLAT BASE - The digital angle gauge applied sturdy aluminum alloy instead of plastic for the main framework. It’ll provide years’ usage. 2 MEASUREING MODES - 1. Checking the true level. 2. Checking the relative angle between two surfaces.
  • REVERSIBLE LCD DISPLAY - The Digital Angle Gauge has a large LCD display with backlight, which only needs one battery for providing accurate, quick and clear measurements and even you can easily read in dark environment. ERROR INDICATOR - If the digital angle gauge is used in an incorrect position (e.g. tilts diagonally over 30 degree), display will tell ERROR to make sure that use is getting the accurate measurement.
  • EASY BATTERY INSTALLATION - You can install battery easily and need no screwdriver. WIth only one AAA battery, the digital angle gauge works 50 hours averagely. *Automatic shut-off after 5 minutes.
  • WHAT YOU'LL GET - Digital angle gauge*1, 1.5V Alkaline battery*1, instruction*1
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 5 x 3.78 x 1.85 inches; 5.29 ounces
  • Item model number ‏ : ‎ 82412
  • Batteries ‏ : ‎ 1 AAA batteries required. (included)
  • Date First Available ‏ : ‎ September 13, 2015
  • Manufacturer ‏ : ‎ Guilin GemRed Sensor Technology Co., Ltd
  • ASIN ‏ : ‎ B00WQLHG2G
  • Customer Reviews:
    4.6 4.6 out of 5 stars 3,751 ratings

From the brand

Product Description

GemRed 82412-basic angle gauge

GemRed 82412-basic digital angle gauge

  • Latest MEMS technology - fast and accurate measurements
  • 2 Measure modes - absolute measurement (level mode) & relative measurement (incremental mode)
  • Only 2 buttons - easy to use
  • Large LCD with backlight- easy to read
  • Small size - fit for various application
  • Strong magnets bulit in the base

APPLICATIONS

  • Setting blade angle of Table Saw
  • Setting blade angle of Miter Saws
  • Setting blade angle of Circular Saws
  • Tool setting on Lathes
  • Setting workpiece angle for milling
  • Drainage angles and run off slopes
  • Grader and tractor work alignment
  • Platform monitoring
  • Working as a mini digital level

PRODUCT SPECIFICATION

GemRed 82412 Digital Angle Gauge

  • Accuracy: 0.2 degrees
  • Resolution: 0.1 degree
  • Measuring range: 4*90degree
  • Power: 1*AAA battery (included in package)
  • Net Weight: 70g
  • Powerful built-in magnets on the base
  • LCD display with green backlight

PORTABLE AND EASY TO USE

With small size 60mm*60mm*30mm, you could carry by hand easily.

Simply switch between Absolute and Relative measuring mode.

Green backlight for easy reading in the dark.

HIDDEN MAGNETIC BOTTOM
Magnets hidden make sure it's reliable for measuring meral surface and also avoiding the influence of absorbed metal dust for the accuracy.

ERRO WARNING

INACCURATE DISPLAY WARNING

When the device tilts diagonally over 30 degrees, it will display ERRO instead of an angle. Because in this situation, this angle gauge is not accurate as it shuold be.

Angle Gauge Q&A

Frequently Asked Questions

1. Why it always show ERROR or ----(no readings)?

MEMS technology provides precise measuring result, but it will not accurate when angle gauge tilts diagonally over 30 degrees. So it tells ERROR or ---- to remind people to use it in a accurate way. Angle gauge with no ERROR indication will not give a correct measurement.

2. Do I need to recalibrate this angle gauge? How to recalibrate it?

GemRed angle gauges are well-calibrated from our factory and lab. You can use it out-of-box. If you want to recalibrate it, please refer to the video in the product page.

3. Does it has magnets on all four sides?

It only has magnets on the bottom. This angle gauge only work with the bottom. Other sides will not give accurate measurement.

4. What's the return policy for this angle gauge?

GemRed provides life-time after-sales services for its products.

angle gauge angle gauge angle gauge angle gauge angle gauge angle gauge
GemRed Angle Gauge - Backlight GemRed Angle Gauge - Basic GemRed Angle Gauge - HOLD&Bubble Vial GemRed Angle Gauge - HOLD&V-shape Magnets GemRed Angle Gauge - HOLD Function GemRed Angle Gauge - IP65 & 4 Measure Units
Customer Reviews
4.6 out of 5 stars
3,751
4.6 out of 5 stars
1,540
4.6 out of 5 stars
1,540
4.6 out of 5 stars
1,540
4.6 out of 5 stars
1,540
4.3 out of 5 stars
101
Price $24.99 $14.99 $26.49 $26.39 $26.19 $43.99
Dimension 60*60*25mm 55.5*55.5*18.8mm 70*60*25mm 69*60*25mm 60*60*25mm 162*60*33mm
Material Aluminium & plastic Plastic Aluminium & plastic Aluminium & plastic Aluminium & plastic Aluminium & plastic
Backlight ✓ No ✓ ✓ ✓ ✓
Bubble vial No No ✓ No No No
Magnetic base type Flat Flat Flat V-groove magnetic bottom Flat V-groove magnetic bottom
ERROR indication ✓ ✓ ✓ ✓ ✓ ✓
Accuracy ±0.2° ±0.2° ±0.2° ±0.2° ±0.2° 0° and 90°: 0.1°; the rest: 0.2°
Resolution 0.1° 0.1° 0.1° 0.1° 0.1° 0.05°
Hold function No No ✓ ✓ ✓ ✓
Measuring unit degree degree degree degree degree degree; mm/m; %; in/ft

What's in the box

  • digital angle gauge, battery

    • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    3,751 global ratings

    Customers say

    Customers like the ease of use, readability, accuracy, and magnet strength of the precision measuring tool. For example, they mention that it's simple to use, easy to read with the backlighting, and extremely precise. They appreciate the solid grip on thick steel surfaces. That said, opinions are mixed on appearance.

    AI-generated from the text of customer reviews

    211 customers mention194 positive17 negative

    Customers are satisfied with the quality of the precision measuring tool. They mention that it does its job well, is excellent, and easy to read. Some say that it works nicely on both chop saw and table saw. Overall, most are happy with their purchase and recommend it to others.

    "...Excellent device; excellent seller; recommend it. Time will tell how it does over the long-haul." Read more

    "...this to ensure my table saw blade was square to my table - it works well but it is sensitive and tends to jump back and forth - so one needs to take..." Read more

    "compact, easy to read, very handy to have." Read more

    "As far as i can tell it works fine.Mostly use it on my table saw." Read more

    143 customers mention113 positive30 negative

    Customers like the accuracy of the product. They say it's easy to use, accurate for setting saw blade angles, and great for determining angles. Some mention that the calibration is easy and that it provides a quick and easy reference to proper alignment.

    "...It's much easier to get the correct angle compared to using my precision square (which gives the exact same 90-degreee reading)...." Read more

    "Works really good for fining the angle on my fixed angle knife sharpener." Read more

    "This little thing is very accurate! I love the magnetic base, being able to sick it on my saw blade while adjusting is great...." Read more

    "...Calibration is easy and otherwise pretty happy." Read more

    76 customers mention76 positive0 negative

    Customers find the precision measuring tool easy to use. They say it's simple to turn on, place it on the saw deck, press 0, and place on. They also appreciate the super simple way to calibrate and measure angles. Customers also mention that the stops on the tool make it easier to set for mitered cuts where the corners are not.

    "Product arrived quickly and is easy to use. I recommend." Read more

    "...I'm not sure I've even had to replace the battery yet! It's easy to use and ensures accuracy. The belt loop case is a nice convenience." Read more

    "...I couldn't be happier. Perfect simple tool...." Read more

    "I finally managed to get the 90° on the miter saw and bench saw. Easy to use and extremely precise." Read more

    60 customers mention54 positive6 negative

    Customers are satisfied with the value of the precision measuring device. They mention that it is an amazing product for the price, and a good choice if you are a DIYer.

    "...Excellent device; excellent seller; recommend it. Time will tell how it does over the long-haul." Read more

    "...the adjust, take reading etc.. overall a good product and worth the small investment." Read more

    "Works perfectly with my TSPROF knife sharpener. Great value" Read more

    "...And for around $20, it's a great price to be able to properly set the angle on the saw." Read more

    24 customers mention19 positive5 negative

    Customers find the precision measuring device easy to read with the backlighting. They also say it gives good, repeatable, steady readings that are accurate.

    "compact, easy to read, very handy to have." Read more

    "...But also does relative angles. Easy to read inside or outside, even in direct sunlight. Or in the dark with the backlight...." Read more

    "Easy to read, backlighting helps. Some dimming when you are off to an angle but not bad. The only issue is the direction arrows seem backwards...." Read more

    "...My only complaint is the screen can be difficult to read at certain angles" Read more

    23 customers mention18 positive5 negative

    Customers like the magnet strength of the precision measuring device. They mention that it's fairly responsive, has a solid grip on thick steel surfaces, and works great.

    "magnetic bottom great" Read more

    "This little thing is very accurate! I love the magnetic base, being able to sick it on my saw blade while adjusting is great...." Read more

    "My fiancé loved this as it works good and is magnetic" Read more

    "...I do like it but I was surprised to find it only has a magnet on one side. For some reason I thought it would have 3 sided...." Read more

    17 customers mention7 positive10 negative

    Customers are mixed about the appearance of the precision measuring. Some mention it looks nice, has good quality, and is elegantly simple. Others say that the quality is poor, the accuracy is bad, and the case is not made well. They also say it feels a little cheap.

    "...It has a solid grip on thick steel surfaces. It is not as strong, but it will just hold up its weight on a thin piece of vertical sheetmetal like..." Read more

    "...It took all the guess work out of it! Very slick!" Read more

    "...The buttons don't seem very sturdy and feel like they will fail over time, but haven't yet." Read more

    "Very nice" Read more

    11 customers mention7 positive4 negative

    Customers have mixed opinions about the battery life of the precision measuring device. Some say it has good battery life, while others say it eats through batteries. It uses a standard AAA 1.5v battery, which is a major bonus.

    "...to determine that mine hasn't died on its own and it doesn't rapidly drain the battery when not in use...." Read more

    "...It's easy to use and has a large display. It uses a standard AAA 1.5v battery as opposed to some others that use the more expensive coin style." Read more

    "...the unit was powered down and approximately 12 hours later the battery was dead again. Unfortunately to late to return it." Read more

    "...I've owned it s few months and the battery is still going strong. Just a basic 2 button operation that works. Would buy again." Read more

    Gonna level with ya.
    5 Stars
    Gonna level with ya.
    For the money, it’s a solid unit with a strong magnet. So far my testing and use have been very accurate. A+
    Hide
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    Top reviews from the United States

    1942 Ford
    5.0 out of 5 stars GemRed Digital Angle Gauge
    Reviewed in the United States on February 19, 2024
    Color: Green BacklightVerified Purchase
    Item arrived quickly, well-packaged and as described. I've used it to "tune up" two table saws, one band saw and one miter saw, as well as one 90-degree band saw sled. It's much easier to get the correct angle compared to using my precision square (which gives the exact same 90-degreee reading). Excellent device; excellent seller; recommend it. Time will tell how it does over the long-haul.
    Helpful
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    R Haseltine
    5.0 out of 5 stars Work's great
    Reviewed in the United States on March 21, 2024
    Color: White Backlight (NEW)Verified Purchase
    Works really good for fining the angle on my fixed angle knife sharpener.
    Helpful
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    Ring Eye Pete
    4.0 out of 5 stars easy to use - with practice
    Reviewed in the United States on April 18, 2024
    Color: Green BacklightVerified Purchase
    I purchased this to ensure my table saw blade was square to my table - it works well but it is sensitive and tends to jump back and forth - so one needs to take a reading and wait, the adjust, take reading etc.. overall a good product and worth the small investment.
    Helpful
     Report
    Bunny Rabbit Bugman
    5.0 out of 5 stars handy little tool
    Reviewed in the United States on April 3, 2024
    Color: Green BacklightVerified Purchase
    compact, easy to read, very handy to have.
    Helpful
     Report
    michael c harris
    5.0 out of 5 stars easy to use
    Reviewed in the United States on March 16, 2024
    Color: Green BacklightVerified Purchase
    magnetic bottom great
    Helpful
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    Dougj71
    5.0 out of 5 stars It works
    Reviewed in the United States on April 8, 2024
    Color: Green BacklightVerified Purchase
    As far as i can tell it works fine.Mostly use it on my table saw.
    Helpful
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    Devyn Woodard
    5.0 out of 5 stars A must have for your toolbox
    Reviewed in the United States on April 8, 2024
    Color: Green BacklightVerified Purchase
    This little thing is very accurate! I love the magnetic base, being able to sick it on my saw blade while adjusting is great. My only complaint is the screen can be difficult to read at certain angles
    Helpful
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    A-Ra
    3.0 out of 5 stars Confusing reading
    Reviewed in the United States on May 4, 2022
    Color: Green BacklightVerified Purchase
    I bought this digital angle reader to adjust my miter saw. The idea of this tool is great. But in practical application it proved to be not so useful. Its bottom side is only side that is magnetic. To adjust the vertical angle of the blade one has to put it on the table surface of the saw and zero it in that position. Then you flip it 90 degree and attache it to the blade with a power of the magnet. At that point the tool gets "confused" between negative or positive angles of the blade. And the digits on display "jump " from positive and negative too, making it hard to understand which way to adjust the blade. It would me good if the tool had magnetized its vertical sides too, so the reading would be closer to the zeroed number.
    2 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    Richard Mullard
    5.0 out of 5 stars A level headed gadget.
    Reviewed in the United Kingdom on December 9, 2023
    Color: Green BacklightVerified Purchase
    Ideal for measuring angles and checking if you are in danger of falling over.
    Report
    Cloggy72
    5.0 out of 5 stars Handy piece of kit
    Reviewed in Australia on December 4, 2023
    Color: Green BacklightVerified Purchase
    It's small, strong magnet and easy to operate. Used it a few times now on my table saw and it is spot on. Brilliant piece of kit for a good price.
    Report
    chris doyle
    5.0 out of 5 stars Compact instrument, easy to set & read, magnetic base holds it firmly in position on steel surfaces
    Reviewed in the United Kingdom on October 29, 2023
    Color: Green BacklightVerified Purchase
    Nothing to dislike. Used to set circular saw blade angle very accurately relative to bed of a tilting arbour bench saw - magic !
    Report
    Glenn Walsh
    4.0 out of 5 stars Jury still out on this prodcut
    Reviewed in the United Kingdom on February 8, 2024
    Color: Green BacklightVerified Purchase
    could do with being cheaper
    Report
    Rol
    4.0 out of 5 stars Requiere pericia
    Reviewed in Mexico on October 26, 2020
    Color: Green BacklightVerified Purchase
    Es un producto de buena calidad, sin embargo, requiere pericia utilizarlo. La precisión máxima la alcanza tanto para 90 como para 45 grados. Sin embargo, es sensible si la posición del artefacto no es la correcta, es decir, tiene buena precisión vertical, pero si de forma horizontal no está bien alineado, la medición será imprecisa. Lo he usado para calibrar la sierra ingletadora y me ha funcionado, pero aún así, debo apoyarme en una escuadra convencional para posicionar de forma correcta este ángulo.
    Report