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Deal.ai › Shieny › Levels
Shieny
400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer
Shieny

400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer

Best price now

$27.99at WalmartChecked 38 min ago

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Price facts

  • Lowest price today: $27.99 at Walmart (checked Nov 14, 2026).

Our take on the 400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer

The Shieny 400mm is a 16.4-inch aluminum angle finder with a backlit LCD, a 0.1° resolution and ±0.2° accuracy across four 90° quadrants. It reads in degrees or mm/m slope, holds readings, and has absolute and relative modes plus horizontal and vertical vials. Four magnets in the base let it stick to steel for hands-free checks. It suits woodworkers, fabricators and installers who need long-reach angle and slope readings; it is a basic tool with no written warranty, so buyers wanting calibration certificates or a warranty should look at brands like Bosch or Wixey.

Best forWoodworkers setting saw and miter anglesFabricators and welders checking steel assembliesHVAC, pipe and antenna installers measuring slopeDIYers doing trim, stairs and roof work
Pros
  • Long 400mm base reaches across joints and long edges
  • 0.1° resolution and 0.2° stated accuracy
  • Backlit LCD keeps readings upright at any angle
  • Reads degrees or mm/m slope
  • Four base magnets hold it on steel
  • Ships with two AAA batteries and a manual
Cons
  • No written warranty
  • Only two vials; no fine adjustment or calibration screw mentioned
  • Bulkier than short pocket angle finders
  • No case included

400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer prices at every store

  • WalmartNew

    Availability unknownSold by enjoy show

    $27.99Free shippingChecked 38 min ago
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Also available at

  • WalmartCheck price at Walmart

400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer price history

Lowest price we've seen: $27.99 on Nov 15 at Walmart. Tracked across 1 store since Nov 15.

About the 400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer

This 400 mm digital protractor and angle finder measures angles and slopes across a full 360 degrees. It has a 4 x 90° measuring range. The body is aluminum alloy.

Four built-in magnets in the base plate let it attach to metal surfaces. A large LCD with backlight shows the reading, and the displayed numbers stay upright so they are easy to read from any angle. Vertical and horizontal bubbles are also included.

It has absolute and relative measurement modes. It always starts in absolute mode when turned on, even after the batteries are changed. Slope can be shown in degrees or in mm/m. Other functions include data hold, a 0° / 90° prompt and automatic shut-down. It can be used in machinery manufacturing, communication installation and home decoration.

Material
Aluminum alloy
Measuring range
4 x 90° (360° total)
Resolution
0.1°
Accuracy
0.2°
Units
Degrees and mm/m slope
Modes
Absolute and relative measurement
Display
Large LCD with backlight
Magnets
4 built-in magnets in the base plate
Level type
Angle
Shape
Rectangular
Dimensions
416 x 50 x 21 mm (16.4 x 2.0 x 0.8 in)
Weight
257 g (9.1 oz)
Power
2 x LR03 batteries, included
In the box
1 digital protractor, 1 user manual, 2 LR03 batteries

Specifications

color
MulticolorSource
size
416 x 50 x 21 mmSource
Level type
Angle
Brand
Shieny
Material
aluminum alloy
Accessories
Digital protractor, user manual, 2 LR03 batteries

Questions and answers

How accurate is it?
The maker states 0.2° accuracy and 0.1° resolution over a 4 x 90° range, so it reads a full 360°. That is fine for carpentry and installation work but not a substitute for a calibrated metrology instrument.
Does it measure slope as well as angles?
Yes. It shows degrees and mm/m slope, and it has absolute and relative modes so you can zero on one surface and read the difference to another.
Can it attach to metal?
Four magnets are built into the base plate, so it holds on steel beams, ductwork and machine tables for hands-free readings.
What batteries does it use?
Two LR03 (AAA) batteries are included. It switches itself off automatically to save power.
Is it good for woodworking?
The long 400mm base helps on wide boards and joints, and the hold function is useful in tight spots. It has no fine adjustment, so check it against a known square if precision matters.
Where is the 400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer cheapest?
At Walmart, for $27.99, as of our latest check.

Stores we've priced the 400mm Digital Protractor Angle Finder Electronic Level 360 Degree Inclinometer at

  • Walmart deals and prices

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