| 摘要 |
A laser leveling device as disclosed in the present invention comprises a body and a power source. The body has a cavity for containing a laser module which is movable between a first position and a second position. When in the first position, the laser module is located within the cavity and is not connected to the power source; and when in the second position, the laser module is located outside of the cavity and the laser is electrically connected to the power source to emit a visible laser beam.
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