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Stanley Stud Sensor 100
The Stud Sensor 100 uses electronic signals
to locate the edges of studs, joists or live
AC wires through drywall or other common
building materials. Once the edge of a stud has
been detected, the Stud Sensor 100 displays
red LED’s and sounds an audible tone. A
marking channel allows you to easily note the
stud edges on the wall.
Note: Read all instructions prior to operating
the Stud Sensor 100 and DO NOT remove any
labels from the tool.
OPERATING INSTRUCTIONS
Battery
1
Open door on back of unit and connect a
9 volt battery (not included) to clip. Put battery
back into case and close back battery door.
Note: Recommend to replace a new 9 volt
battery when low battery - flashing green
LED.
Usage
Detecting Wood / Metal Studs
2
Hold the Stud Sensor 100 flat against
the surface, making firm contact.
3
Press in and hold the activation
button. The green and top red LED will
light.
4
When the red LED goes off, the
unit is calibrated.
5
Keep holding the
activation button during all of the following
procedures.
Note:
3
The unit cannot be moved
before calibration is complete.
2
While calibrating, the Stud Sensor 100
must not be placed directly over a stud,
dense material such as metal, or over a wet
or newly painted area, or it will not properly
calibrate.
11
If the red LED stays lit, move
the Stud Sensor 100 to a different location
and try again. Releasing the activation
button will turn off the sensor.
6
Slide the Stud Sensor 100 slowly across
the surface in a straight line.
9
As it detects
a stud, the red LED’s will go on.
6
When it
detects the stud edge, the top LED will go
on and an audible tone will sound. Use the
marking channel located at the top of the
unit to mark the stud edge.
7
Repeat the
above steps from the other side of the stud.
Coming from the opposite direction, mark
the other edge of the stud.
8
The midpoint
of the two marks indicates the stud center.
Detecting Live AC Wires
10
The live wire red LED will illuminate and
the Stud Sensor 100 sounds an audible tone,
warning when in the proximity (typically
within 4” to 18” along the surface) from a
live wire.
Note: Static electrical charges that can
develop on drywall and other surfaces will
spread the voltage detection area many
inches on each side of the actual electrical
wire. To aid in locating the wire position,
scan holding the unit ½” away from the
wall surface or place your other hand on the
surface approximately 12” from sensor.
Warning: Shielded wires or wires in metal
conduits, casings, metallized walls or thick,
dense walls will not be detected. Always
turn off AC power when working near
wiring.
Cautions on Operating
You should always use caution when nailing,
cutting and drilling in walls, ceilings and
floor that may contain wiring and pipes near
the surface. Always remember that studs
or joists are normally spaced 16 inches or
24 inches apart and are 1½ inches in width.
To avoid surprises, be aware that anything
closer together or of a different width may
not be a stud.
OPERATING TIPS
The Stud Sensor 100 is designed for use only
on interior surfaces.
Prevent Interference
To ensure best performance from the Stud
Sensor 100, keep your free hand at least
6 inches away from the unit and wall surface
while testing or scanning surfaces.
Conventional Construction
Doors and windows are commonly
constructed with additional studs and
headers for added stability. The Stud Sensor
100 detects the edge of these double studs
and solid headers as a single, wide stud.
Surface Differences
The Stud Sensor 100 will scan through
common building materials, Including:
•Gypsum drywall
•Plywood sheathing
•Hardwood floors
•Linoleum over wood
•Wallpaper
The scanner cannot scan through:
•Carpeting
•Foil faced materials
•Ceramic tile
•Cement or concrete
•Metal & plaster walls
Wallpaper
There will be no difference in the function
of the Stud Sensor 100 on surfaces
covered with wallpaper or fabric unless
the coverings used contain metallic foil or
fibers.
Ceilings
When dealing with a rough surface such
as a sprayed ceiling, utilize a piece of
cardboard when scanning the surface. Run
through the calibration technique described
earlier with the piece of cardboard too, to
assure best performance of the unit. Also, it
is particularly important in this application
to remember to keep your free hand away
from the unit.
Note: The thickness, density and moisture
content of the surface material will affect
the sensing depth.
IMPORTANT SAFETY NOTICE
Insure proper detection of live wires. Always
hold the Stud Sensor 100 in the handle area
only. Grasp between fingers and thumb while
making contact with your palm.
SPECIFICATIONS
(At 35-55% relative humidity)
Battery
9 volt (not included)
Depth Range
Wood or Metal Studs
Up to ¾” (19 mm) through drywall
Live AC Wires (120 volts AC)
Up to 2” (50 mm) through drywall
Accuracy - Stud Center (Scanning and marking the stud from two sides stud center)
Wood
±1/8” (3 mm)
Metal
±1/4” (6 mm)
Operating Temperature
+32°F to +120°F (-0°C to +49°C)
Surface Temperature
-4°F to +150°F (-20°C to +66°C)
WARRANTY
Stanley Tools warrants the Stud Sensor 100
against defects in material and workmanship
for one year from the date of purchase.
Stanley’s liability under this warranty is limited
the replacement of the unit. Any attempt
to repair the product by other than factory
authorized personnel will void this warranty.
Calibration, batteries and maintenance are the
responsibility of the user. Where permitted by
law, Stanley is not responsible for incidental
or consequential damages. Agents of Stanley
cannot change this warranty. Stanley is not
responsible for damage resulting from wear,
abuse or alteration of this product. The user is
expected to follow ALL operating instructions.
This warranty may provide you with additional
rights that vary by state, province or nation.
WARNING:
Protect Your Eyes, Wear Safety Goggles.
©2012 STANLEY TOOLS
www.STANLEYTOOLS.com
701 East Joppa Road
Towson, Maryland 21286