Value of vial division ..... 2’
Admissible drift of vial bubbles from middle position, max. 1/4 of vial division
Parallel misalignment of laser beam, mm, in relation to:
 lower surface .....within 3 on 10 m
 upper surface..... within 6 on 10 m
Output power of laser emission, mW, max...... 2,5
Maximum distance in operation, m..... 30
Laser emission wavelength, nm ..... 650-670
Supply  voltage, V..... 3
Laser spot core diameter, mm:
 at outlet ..... 5
 30 m away ..... 15
Mass, kg:
 level..... 0.5
 case..... 1
Overall dimensions, mm:
 level..... 208x78x32
 case ..... 354x331x122

The level is provided with a set of additional accessories,
 namely: mark, bracket, tribrach, axle, dialed axle, which
  can extend the field of application.