Spirit level PRO 120 cm with 2% slope indicator — horizontal and vertical measurement

Professional PRO spirit level 120 cm with 2% slope indicator is a long-format measuring tool for precise horizontal and vertical alignment. The aluminium body combines rigidity with moderate weight, allowing use on walls, floors and structural elements. The instrument includes a standard vial for level and plumb readings and a dedicated 2% slope indicator to set small gradients accurately, making it suitable for construction, installation and finishing tasks that require controlled inclines and exact alignment.

Advantages

The 120 cm length provides extended reference across surfaces while the lightweight construction reduces user fatigue during prolonged use. Integrated vials deliver clear bubble readings for both horizontal and vertical measurement; the 2% slope indicator allows quick and repeatable gradient setup without additional tools. The durable profile resists bending and maintains straightness under normal jobsite conditions, and the simple, unobtrusive design supports straightforward handling and positioning.

Suitable for

• Aligning walls, partitions and large panels
• Setting floor gradients and drainage slopes
• Installing doors, windows and frames
• Checking verticality of columns, studs and posts
• Finishing work where continuous straight reference is needed

Key specifications

• Length: 120 cm
• Measurement types: horizontal (level) and vertical (plumb)
• Slope indicator: 2% gradient marking for quick slope setup
• Body material: lightweight rigid aluminium profile
• Vial type: clear easy-read bubble vials for level and plumb
• Use environment: indoor and outdoor construction and installation tasks

How to use

Place the spirit level on the surface to be checked or used as a straight reference. For horizontal alignment, read the central vial and adjust the object until the bubble is centred. For vertical checks, position the level vertically against the surface and read the plumb vial. To set a 2% slope, align the level so the 2% indicator corresponds to the desired gradient, then secure or mark the reference line. Ensure the contact surface is clean and free from debris for accurate readings.

Usage recommendations

Store the spirit level on a flat surface or hang it when not in use to prevent bending. Avoid dropping or striking the profile against hard edges to maintain vial accuracy. Periodically verify vial calibration on a known flat reference before critical measurements. For extended measurement runs, use the full 120 cm length as a single straight reference or combine with additional levels for longer spans.