The TVP torpedo spirit level is an impact-resistant spirit level in yellow polystyrene plastic that withstands temperatures between 15°C and +60°C. It has unbreakable block vials with
extremely high transparency and durability, the horizontal vial has a luminous reflector, also this level has a V groove in the bottom to enable use on pipes.

The vial radius is 200mm, which gives a sensitivity of 10mm/m and a tolerance in normal position ± 1.0mm/m. The vial fluid is a low viscosity, coloured oil mixture that gives the bubble the best possible conditions for movement and is resistant to ultraviolet light and temperature fluctuations. The bubble is not affected by static electricity as the fluid is anti-static.