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The detector is designed exclusively for use with the DW088 and the 
DW089 line lasers and other compatible DEWALT line lasers. It is not 
for use with rotating lasers. 
The detector gives both visual signals through the LCD display window 
(m) and audio signals through the speaker (n) to indicate the location of 
the laser beam. 
The D
EWALT Digital Laser Detector can be used with or without the 
detector clamp. When used with the clamp, the detector can be 
positioned on agrade rod, leveling pole, stud, or post.
Batteries (fig. 9)
The digital laser detector is powered by a9-volt battery. To install the 
battery provided, lift up on the battery compartment cover (o). Place 
the 9-volt battery in the compartment, aligning the battery as shown 
on the embossed icon. 
Detector Controls (fig. 9)
The detector is controlled by the power button (q) and the volume 
button (r). 
When the power button is pushed once, the detector is turned on. The 
top of the sensor window shows the ON icon and the volume icon. 
The D
WALT Digital Laser Detector also has an auto shut-off feature. 
If alaser beam does not strike the beam detection window, or if no 
buttons are pressed, the detector will shut itself off in about 5 minutes.
To turn off the audible signal, push the button again; the volume icon 
will disappear. 
The detector powers up in the narrow accuracy setting (icon appears in 
the lower left corner). Press the accuracy button (s) once to change to 
the wide accuracy setting (icon now appears in the lower right corner).
Accuracy
The detector provides two accuracy settings, wide and narrow. In the 
wide setting, the detector provides alarger tolerance for indicating 
that the detector is “on grade”. In the narrow setting, this tolerance is 
reduced for more accurate indication of “on grade”.
For the most accurate results, start the work using the wide setting and 
finish in the narrow setting.
DW089_DW089CG - User Manual - NA - May 2018.indd   23 5/25/2018   10:40:48 AM