Inventors:
Stephen Miller - Arcadia CA, US
International Classification:
G01C015/10
US Classification:
033/283000, 033/286000, 033/392000
Abstract:
A self-aligning plumb apparatus has an elongated housing with a laser beam module in the housing. The end of the housing is pointed and is magnetized for suspending the apparatus from metallic beams and the like. The switch is mounted on the housing in a position where it is activated by a slidable plumb bob weight.