30 40 50 Cm Digital Level Ruler Magnetic Angle Meter

Experience precise angle measurement and reliable magnetic positioning with the 30/40/50 cm Digital Level Ruler Magnetic Angle Meter. Crafted from durable aluminum alloy, this digital level combines a clear display with strong magnetic adsorption to keep your tool steady on ferrous surfaces. Choose the model that fits your project length—30 cm, 40 cm, or 50 cm—with a corresponding number of horizontal bubbles for fast reference: 30 cm (1 bubble), 40 cm (2 bubbles), 50 cm (3 bubbles).

This tool provides accurate horizontal readings from 0° to 90°, with a fine resolution of 0.05° and an overall accuracy of ±0.1°. The inverted reading feature automatically flips the numbers when you read from the opposite side, so you can work comfortably in tight or awkward spaces. A CNC-milled bottom delivers excellent flatness and anti-slip performance, while the powerful magnet helps you attach the ruler securely to metal workpieces for hands-free measuring.

Calibration is straightforward with the built-in Tutorial mode. If you see “Error 1” or notice an incorrect angle when you turn on the device, simply switch it off, place it on a flat surface, and follow the calibration video instructions. Be sure to select the correct model to match your length and the corresponding number of horizontal bubbles for accurate results.

Benefits & Tips

• Hands-free accuracy: Use the strong magnet to attach the ruler to metal shelves, doors, or furniture frames for steady measurements.
• Versatile project sizing: Choose the 30 cm, 40 cm, or 50 cm model to suit cabinet installation, tile work, or machinery setup without compromising precision.
• Efficient setup: Read angles quickly with inverted reading for comfortable viewing from either side, reducing squinting and misreads in tight spaces.

Product specifications

• Main raw materials: Aluminum alloy
• Horizontal Bubble: 30 cm model — 1 piece; 40 cm model — 2 pieces; 50 cm model — 3 pieces
• Resolution: 0.05°
• Accuracy: ±0.1°

Package includes:

• 1 × Digital level ruler

Warnings/Reminders

For best results, ensure you select the correct model for your length. If “Error 1” appears or readings seem off, turn the device off, place it on a flat surface, and follow the calibration video steps. Keep the tool away from strong magnetic interference that could affect accuracy.

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