• 0.5 mm/m precision in normal position • Barrel-shaped vials • Vial liquid is resistant to UV light and extreme temperatures • Sensitivity of 1 mm/m • High-visibility • Radius of the vial is 2000 mm • Unbreakable vials • 4 lines in each side of flat vial, thick one is zero point, each line gives 1 mm/m extra for making slopes • 100 x 25 mm double-T profile with 3 mm thickness • Spare vial is part number 496-SPARE