FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment and can be used for measuring vertical and horizontal angles. Spirit level includes the ampoule with bubble for visual indication of deviation of vertical surface and a reflecting surface arranged at an angle relative to the ampoule with bubble to enable the user standing opposite a vertical surface to see reflected image of the ampoule with bubble. Reflecting surface can be turned about rotation axis, thus allowing a user standing with an offset to the left or right from spirit level, to turn the reflection surface in order to see the reflected image of ampoule with bubble so that spirit level provides full range of angular view, more than a fixed reflecting surface.
EFFECT: technical result is high accuracy of measuring vertical and horizontal angles.
1 cl, 12 dwg
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