Spirit level STABILA 81SM magnetic 25 cm yellow (02511)

STABILA 81SM is a compact 25 cm spirit level with an integrated magnetic base and a yellow finish. Designed for quick and accurate checking of horizontal and vertical surfaces, this tool offers stable attachment to ferrous materials and straightforward bubble alignment for reliable levelling in confined or mobile work situations. Its size and magnetic function make it convenient for carpentry, metalwork and installation tasks where hands-free positioning or a small, transportable level is preferred.

Advantages

The magnetic base ensures secure temporary fixation to steel and other ferrous surfaces, reducing the need for clamps or a second pair of hands. The 25 cm length balances portability with measuring stability, providing a firm reference for short spans and tight spaces. High-contrast vial markings and a durable yellow body improve visibility on job sites and resist everyday wear during handling and transport.

Suitable for

• Carpentry and joinery alignment
• Metal fabrication and welding setup
• Plumbing and installation of fixtures
• Mounting brackets, rails and small frames
• On-site quick checks and portable levelling tasks

Key specifications

• Length: 25 cm
• Magnetic base for attachment to ferrous materials
• High-visibility yellow finish
• One or more vials for horizontal and vertical alignment
• Compact, portable design suitable for confined spaces

How to use

Place the spirit level on the surface to be checked, either by resting it on the edge or by attaching it to a ferrous surface using the magnetic base. Allow the vial bubble to settle and read the alignment when the bubble is centred between the reference marks. For vertical checks, position the level upright; for horizontal checks, lay it flat. When working on longer spans, use the 25 cm level as an initial reference or combine it with longer levels for extended measurement runs.

Usage recommendations

Keep the vial surfaces clean and avoid strong impacts to preserve accuracy. Use the magnetic base for temporary holding on steel but verify final alignment with a longer level or additional measurements for large or critical installations. Store the level in a dry place to prevent corrosion of the magnetic area and maintain consistent performance.