Levelfix 550H Construction laser Horizontal construction laser with red beam RED554500 See product Levelfix 550HV Construction laser Fully automatic all-round construction laser with red beam RED554501 See product Levelfix 550HVG Construction laser Fully automatic all-round building laser with green beam GREEN554502 See product Levelfix 860H Construction laser Horizontal construction laser with red beam RED 554810 See product Levelfix 860HVS Construction laser Digital dual slope laser RED554800 See product