Master Level Overall Height 7 7/8 in Overall Length 7 7/8 in Overall Width 1 9/16 in Number of V-Grooves 2 Number of Level Vials 2 Number of Plumb Vials 0 Number of Cross Test Vials 1 Vial Graduations 0.02 mm/m Features Slide Viewing Slots Total Number of Vials 1 Sensitivity 0.02 mm/m Mount Type Mounting Bracket Frame Material Cast Iron Calibration Certificate Available Separately Level Orientation Horizontal Precision Vial Properties Graduated Shape Square Accuracy 0.02 mm/m