Spirit level PRO model 100-AB-100 — 100 cm length, 2% slope indicator, horizontal and vertical vials

PRO spirit level 100-AB-100 is a 100 cm measuring tool for checking horizontal and vertical alignment, equipped with integrated vials and a 2% slope indicator. Designed for construction, installation and finishing tasks, the level provides clear visual feedback for straightness, plumb and small gradient control on surfaces, frames and fixtures.

Advantages

The aluminium body offers a balance of rigidity and light weight, while the 100 cm length enables stable measurements across moderate spans. Integrated horizontal and vertical vials provide quick readouts for level and plumb, and the dedicated 2% slope indicator allows accurate small-gradient checks without additional instruments. The design focuses on straightforward measurement, easy handling and visible markings for reliable alignment work.

Suitable for

• Installing doors, windows and frames
• Checking level and plumb on walls and partitions
• Setting small gradients for drainage or slope-sensitive fittings
• General construction, carpentry and interior finishing tasks

Key specifications

• Length: 100 cm
• Vial types: horizontal and vertical
• Slope indicator: 2% gradient
• Body material: aluminium (lightweight and rigid)
• Readability: visible vials for quick visual alignment

How to use

Place the spirit level on the surface to be checked, ensuring full contact along the base for the most accurate reading. For horizontal checks, align the horizontal vial bubble between the marked lines; for vertical checks use the vertical vial in the same way. To verify a 2% slope, position the level along the intended gradient and read the dedicated slope indicator. For best results, perform measurements from multiple points along the surface and average or compare readings as needed.

Usage recommendations

Store the level in a dry place and avoid heavy impacts to preserve vial calibration. Periodically verify accuracy on a known flat surface by checking in both orientations; if readings differ, adjust your workflow or replace the tool. When working outdoors or on dusty sites, clean contact surfaces before measurement to reduce errors.