Strong craftsmans aluminium levels with highly transparent and durable, unbreakable block vials. The horozontal luminous vial magnifies to +30%. Impact absorbing and secure end guards.
Sensitivity of 10 mm/m and a tolerance in normal position of ± 0.5 mm/m (inverted 0.75 mm/m). The vial fluid is a low viscosity, coloured oil mixture that gives the bubble the best possible conditions for movement plus it is resistant to UV light and temperature fluctuations. The bubble is also not affected by static electricity as the fluid is anti-static.