Spirit level STABILA R300 18373 aluminum 100 cm, accuracy 0.5 mm/m

STABILA R300 18373 is a 100 cm aluminum spirit level designed for precise horizontal and vertical alignment with an accuracy of 0.5 mm/m. The rigid yet lightweight aluminum profile provides stable contact with measurement surfaces while the long 100 cm length makes it suitable for checking straightness across longer spans. Built to withstand jobsite conditions, this level is intended for use in construction, carpentry and installation work where accurate, repeatable leveling is required.

Advantages

The level combines a lightweight aluminum body with a robust rigid profile to reduce flex and maintain consistent readings over its length. With an accuracy of 0.5 mm/m, it delivers fine tolerance measurements for alignment and installation tasks. The longer 100 cm profile improves reference over larger surfaces and the simple, no-frills design makes it easy to position and read on a variety of materials and edges.

Suitable for

• General construction site leveling and alignment
• Carpentry and joinery tasks such as door and window fitting
• Installation of cabinets, shelves and fixtures
• Checking straightness of beams, countertops and long surfaces

Key specifications

• Material: aluminum profile for reduced weight and increased rigidity
• Length: 100 cm profile for extended reach and reference
• Accuracy: 0.5 mm per meter for precise leveling
• Vial type: bubble vial(s) for horizontal and vertical measurement (visible from standard working positions)
• Construction: rigid one-piece profile designed for jobsite use

How to use

Place the spirit level on the surface to be checked, ensuring full contact along the profile. For horizontal checks, align the level until the bubble centers in the horizontal vial; for vertical checks, rotate the level and center the bubble in the vertical vial. For longer spans, check multiple points along the workpiece and compare readings to detect any deviations from straightness. Handle the tool with care to avoid impacts that could affect vial alignment or profile straightness.

Usage recommendations

Store the level in a protective bag or on a flat surface when not in use to preserve accuracy. Regularly inspect vials and the profile for damage or dirt; clean contact edges before measurement. For the most reliable results on critical installations, verify accuracy against a calibrated reference level periodically.