The SM DIY sprit level has an aluminium profile that measures 49 x 21mm and weighs around 520g/m. The unbreakable block vials have an extremely high transparency and durability with the vial radius of 200mm, which gives a sensitivity of 10mm/m and a tolerance in normal position ± 0.75mm/m, inverted 1.0mm/m.

The vial fluid is a low viscosity, coloured oil mixture that gives the bubble the best possible conditions for movement. Resistant to ultraviolet light and temperature fluctuations.

The bubble is not affected by static electricity as the fluid is anti-static.