Designed for use where a constant level or repeat level measurements are required. Applications include alignment of windows, dado rails, kitchen units, stairs, outdoor levelling etc. One horizontal and vertical vial. Operating distance of 3-8M with an accuracy of 0.5mm per 1M = 0.029° in standard position. Supplied with heavy duty adjustable tripod (max. height 1.18M), rotating base marked 360° for mounting level, laser enhancement glasses, two brass 90° line generating glass prisms and two AAA batteries. Supplied with manual. Packed in blow mould carrying case with display sleeve.