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EST0002
STUDTECH™
The Ryobi StudTech™
locates wood and metal
studs in walls. It features
a sleek, high-impact case
and a built-in clip.
Use StudTech for depths
up to 3/4 in. (19 mm) with
+1/4 in. (6 mm) center
accuracy.
• Pull down back of
• Snap 9-V battery into
• Replace the end cover.
WARRANTY
This product is a consumable item. Therefore
it is warranted against defective parts and
• With StudTech turned off, po-
labor only and not misuse or deterioration of
product through normal wear and tear for a
period of 2 years from date of purchase.
• Squeeze On/Off button and
RYOBI TECHNOLOGIES INC.
1428 Pearman Dairy Road
Anderson, SC 29625
• Turn on and slowly slide unit
www.ryobitools.com
1-800-525-2579
983000-283
1-04
EST0002
STUDTECH™
3/4 in.
INSTALLING THE BATTERY
unit to release battery
compartment.
compartment, terminal
side first, matching (+)
and (-) terminals from
PRESS
battery to case.
Alkaline battery life is
PULL
approximately 30 hours.
DOWN
CALIBRATION AND SCANNING
SLIDE
sition the unit flat against the
wall.
hold in.
horizontally across the wall,
right or left. Red light and
HOLD
"beep" indicates edge of
BUTTON
stud.
CALIBRATION AND SCANNING
• When red LED is lit, the
beep sounds, locating the
edge of the stud. Mark
this spot.
• Continue scanning
beyond the marked spot
until the top red LED
goes out. Slide unit in
reverse direction to locate
other edge of stud.
• Mark this second spot.
Middle of stud is centered
between the two marks.
VERIFYING IF THE UNIT WORKS
• Turn StudTech™ on in
the air. If the LEDs light
when you bring your
hand up to the back,
then the unit is working
properly.
Situations
Possible Causes
No indications.
• No studs in that area.
Light starts blinking
• Over-the-stud calibration error.
and unit beeps
• Scan began on dense part of
repeatedly.
wall or over stud.
• Unit not flat against wall.
• Unit was rocked or lifted
during scan.
Indications in too
• Detect other objects
besides studs.
many places.
• Electrical wiring and metal/
plastic pipes may be near
or touching back surface of
wall
WARNING: To avoid risk of electrical shock, ALWAYS turn power off when working near electric wires.
Avoid nailing, cutting or drilling in walls where electrical or plumbing may be present. Do not permit
children to use this device. It is not a toy.
OPERATING NOTES
Depending on the proximity of electrical wiring or
pipes to the wall surface, the StudTech™ may detect
them in the same manner as studs. Caution should
always be used when nailing, cutting or drilling in
walls, floors and ceilings that may contain these items.
To avoid plumbing, electrical, etc., remember that
studs or joists are normally spaced 16 in. (406mm)
or 24 in. (610mm) apart and are 1-1/2 in. (38mm) in
width. Anything closer together or a different width
may not be a stud, joist or firebreak. Always turn off
the power when working near electrical wires.
WORKING WITH
DIFFERENT MATERIALS
The StudTech™ is designed for use on dry interior walls
only. Three primary factors can affect sensing depth:
Thickness, density and moisture content.
The StudTech™ is not designed to handle materials
with inconsistent density such as:
Ceramic floor tile
Carpeting and padding
Wallpaper with metallic fibers
Freshly painted walls that are still damp (must dry at
Least a week)
Lath and plaster
Solutions
• Move several inches to the left or right and start again.
• Release On/Off button, move over a few inches, press
On/Off button, and start again.
• On rough surfaces, place piece of cardboard on wall,
scanning through it to help slide unit more smoothly.
• Always hold StudTech parallel to stud or joist and
move across it.
• Because studs are normally spaced 16 in. (406mm) or
24 in. (610mm) apart and are 1-1/2 in. (38mm) wide,
beware of anything closer together or of a different
width.
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