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•  Do not operate the laser in explosive 
atmospheres, such as in the presence of 
fl ammable liquids, gases, or dust. This tool may 
create sparks which may ignite the dust or fumes.
•  Store an idle laser out of reach of children and 
other untrained persons. Lasers are dangerous in 
the hands of untrained users.
•  Tool service MUST be performed by qualifi ed 
repair personnel. Service or maintenance performed 
by unqualifi ed personnel may result in injury. To 
locate your nearest DEWALT service center go to 
www.DEWALT.com.
•  Do not use optical tools such as a telescope or 
transit to view the laser beam. Serious eye injury 
could result. 
•  Do not place the laser in a position which may 
cause anyone to intentionally or unintentionally 
stare into the laser beam. Serious eye injury could 
result.
•  Do not position the laser near a refl ective 
surface which may refl ect the laser beam toward 
anyone’s eyes. Serious eye injury could result.
•  Turn the laser off when it is not in use. Leaving 
the laser on increases the risk of staring into the 
laser beam.
•  Do not modify the laser in any way. Modifying the 
tool may result in hazardous laser radiation exposure.
•  Do not operate the laser around children or allow 
children to operate the laser. Serious eye injury 
may result.
•  Do not remove or deface warning labels. If labels 
are removed, the user or others may inadvertently 
expose themselves to radiation.
•  Position the laser securely on a level surface. If 
the laser falls, damage to the laser or serious injury 
could result.
Personal Safety
•  Stay alert, watch what you are doing, and use 
common sense when operating the laser. Do not use 
the laser when you are tired or under the infl uence 
of drugs, alcohol, or medication. A moment of 
inattention while operating the laser may result in 
serious personal injury.
•  Use personal protective equipment. Always wear 
eye protection. Depending on the work conditions, 
wearing protective equipment such as a dust 
mask, non-skid safety shoes, hard hat, and hearing 
protection will reduce personal injury.
Tool Use and Care
•  Do not use the laser if the Power/Transport Lock 
switch does not turn the laser on or off. Any tool that 
cannot be controlled with the switch is dangerous and 
must be repaired.
•  Follow instructions in the Maintenance section of 
this manual. Use of unauthorized parts or failure to 
follow Maintenance instructions may create a risk of 
electric shock or injury.
Battery Safety
WARNING: 
Batteries can explode, or leak, and can 
cause injury or fi re. To reduce this risk:
•  Carefully follow all instructions and warnings on the 
battery label and package, and the accompanying 
Battery Safety manual.
•   Always insert batteries correctly with regard to 
polarity + and –, as marked on the battery and the 
equipment.
•  Do not short battery terminals.
•  Do not charge disposable batteries.
•  Do not mix old and new batteries. Replace all 
batteries at the same time with new batteries of the 
same brand and type.