Spirit level Proline 15300 — length 0.135 m, compact measuring level

Proline 15300 is a compact spirit level with a length of 0.135 m designed for quick checks of horizontal and vertical alignment in confined spaces. Its small size and foldable design allow convenient use on furniture, pipes, window frames and other narrow or hard-to-reach areas where a full-size level is impractical. The tool includes three vials — two for horizontal and vertical alignment — and a toothed angle scale with markings every 15° for basic angle checks. A magnetic strip provides hands-free attachment to metal surfaces, improving accuracy during installation and repair tasks.

Advantages

The compact footprint and foldable mechanism make this spirit level easy to store and transport while still providing reliable bubble vial readings for quick checks. Magnetic fixation ensures stable positioning on ferrous surfaces, and the toothed scale with 15° increments enables basic angle measurements without additional tools. With three vials, the level covers both horizontal and vertical control and supports measurement of flat surface horizontality.

Suitable for

• Carpentry and furniture assembly in tight spaces
• Plumbing and pipe alignment where access is limited
• Window and door frame installation and adjustment
• Quick on-site checks during renovation or repair work
• DIY projects that require portable measuring tools

Key specifications

• Length: 0.135 m
• Foldable design for compact storage
• Three vials: two for horizontal and vertical alignment
• Toothed angle scale with markings every 15°
• Magnetic strip for attachment to metal surfaces
• Capable of measuring horizontal aspect of flat surfaces

How to use

Place the Proline 15300 spirit level on the surface to be checked and allow the bubble to settle. For horizontal checks, position the level along the length of the surface and read the central vial; for vertical checks, align the level upright and read the corresponding vial. Use the toothed angle scale to estimate angles in 15° increments by matching the desired mark with the tool's reference. The magnetic strip can hold the level in place on ferrous surfaces, allowing hands-free work when performing installations or adjustments.

Usage recommendations

Keep the vials clean and inspect them periodically for air bubble clarity and intact seals. Store the tool folded to protect the vials and toothed scale. For most accurate results, place the level on a clean, flat surface and avoid using the magnetic attachment on painted or heavily corroded metal without verifying secure contact first.