Hanging the Level

• Once you've established a certain level, you need to put the level down in order to actually continue working. However, you often need the level to remain in place. There are a number of options for achieving this. The first is to get someone to help you, and have them hold the level as you mark the places on the wall to indicate the level. A second option is to get a tripod for your laser. This is particularly useful for rotary lasers, as a tripod frees up the hands, but doesn't move unless bumped. For smaller lasers such as hand-held models, you may be able to tack them to the wall without damaging anything.
  
  

Sensors

• Some lasers come with additional features, one of which is an out-of-level sensor. This sensor will have to be set up separately, and it will have to be in a place where the laser is going to intersect it. The out-of-level sensor will give off a beeping sound when the laser intersects it, letting the worker know through an auditory cue that the proper level has been reached. The sensor it often attached to a physical level or other ruler-like object so that it's hung at the proper distance. If you have this feature with your laser, then it should be hung first, followed by the laser.
  
  

Making Marks

• Once the sensors and the laser level have been set at their appropriate levels, and the laser level has been turned on, it's time to mark the necessary places. If you're hanging cabinets, for instance, you want them at the same level. Use the light as your guide, then mark the area with a pencil, using a straight edge to keep it level with the laser. This way the laser can be turned off and work can continue without being delayed every time someone blocks the light.