Spirit level Proline 15929 — length 1.8 m, measuring tool

Proline 15929 — length 1.8 m spirit level is a precision measuring tool intended for checking horizontal and vertical alignment and for transferring levels over longer spans. With a 1.8 m length, milled measuring edge and a durable powder-coated aluminium body, this spirit level provides a stable straight reference for construction tasks, installations and finishing works. It combines a long reference edge with two high-quality vials for accurate readings and a hanger-friendly holder for convenient storage on site.

Advantages

The aluminium body is powder coated for corrosion resistance and everyday durability. Two high-quality level vials with a lifelong guarantee enable reliable horizontal and vertical readings. The milled measuring edge ensures a precise contact surface for layout and measurement tasks, while the 1.8 m length offers an extended working span for aligning large surfaces. A hanger-compatible holder allows the tool to be stored on hooks for easy access.

Suitable for

• Aligning and leveling walls, ceilings and floors in construction and renovation
• Installing doors, windows, cabinets and shelving
• Checking plumb and straightness on long runs of framing or plasterboard
• DIY projects requiring a long, stable reference edge

Key specifications

• Length: 1.8 m
• Measurement accuracy: 0.5 mm per 1 m
• Body material: aluminium, powder coated
• Milled measuring edge (available sizes: 40, 60, 80, 100, 120 cm)
• Number of vials: two, high-quality with lifelong guarantee
• Storage feature: holder for hanging

How to use

Place the Proline 15929 spirit level on the surface or edge you need to check. For horizontal measurements, rest the level on the surface and observe the central vial; adjust the workpiece until the bubble centers. For vertical or plumb checks, position the level against the vertical surface and use the vertical vial for indication. Use the milled edge for precise contact when aligning profiles or marking straight lines over distances. When transferring level over long spans, support the level at intermediate points if necessary to maintain accuracy.

Usage recommendations

Store the spirit level on a hook or in a toolbox using the built-in holder to protect the vials and milled edge. Avoid dropping or striking the tool to preserve measurement accuracy. Periodically verify accuracy against a known straight reference and replace the level if vials become damaged or the aluminium edge is bent.