Aluminium profile I-shaped, 57 x 26 mm, weight 0.68 kg/m. Two fitting options: with 2 vials (horizontal and vertical) or 3 vials (horizontal, vertical and a vial with 45° inclination).

Measuring accuracy: 1 mm/m in normal position.
Length: 40 cm, 50 cm, 60 cm, 80 cm, 100 cm.

Illustrative order: I-profile spirit level, anodised, 3 vials, length 40 cm: LIE3040