The Hultafors HV150 Craftsman Spirit Level 150cm. The Hultafors HV Craftsman Magnetic Level has a strong aluminium profile with crush-proof block vials which are highly transparent and durable. Horizontal vial with a 30% magnification lens and luminescent reflector. The vial liquid has a low viscosity which gives the bubble optimal freedom of movement. Highly resistant to ultraviolet light and temperature fluctuations. The bubble is not affected by static electricity as the fluid is anti-static. Fitted with shock absorbing end protectors and temperature-proof vial mountings. The radius of the vial is 200mm, giving a sensitivity of 10 mm/m. Tolerance in normal position is 0.5 mm/m, upside down 0.75 mm/m.