INSTALL 9-VOLT BATTERY
Always use a new alkaline
battery
with an extended expiration date.
Match battery direction to image
inside of battery cavity.
WARNING
Do not rely
exclusively on the
tool to locate items behind a
surface. Use other information to help locate
items before penetrating the surface, including
construction plans, visible points of entry of
pipes and wiring into walls such as in a basement,
and standard stud-spacing practices.
OVER-THE-STUD WARNING
If scanning begins directly over a stud, the tool will emit a
continual beep.
If this happens, restart the scan in a different location.
WARNING
DO NOT ASSUME THERE ARE NO
LIVE ELECTRICAL WIRES IN
THE WALL. DO NOT TAKE ACTIONS THAT COULD
BE DANGEROUS IF THE WALL CONTAINS A LIVE
ELECTRICAL WIRE. ALWAYS TURN OFF THE
ELECTRICAL, GAS, AND WATER SUPPLIES BEFORE
PENETRATING A SURFACE. FAILURE TO FOLLOW
THESE INSTRUCTIONS MAY RESULT IN ELECTRIC
SHOCK, FIRE, AND/OR SERIOUS INJURY OR
PROPERTY DAMAGE.
WORKING WITH DIFFERENT MATERIALS
Wallpaper
This tool functions normally on walls
covered with wallpaper or fabric, unless the materials
are metallic foil, contain metallic fibers, or are still wet
after application. Wallpaper may need to dry for several
weeks after application.
Freshly painted walls
Paint may take a week or longer
to dry after application.
Lath and plaster
Due to irregularities in plaster
thickness, this tool is not recommended for use on lath
and plaster.
Highly textured walls or acoustic ceilings
When scanning a ceiling or wall with an uneven surface,
place thin cardboard on the surface to be scanned.
This tool cannot scan for wood studs and joists through
carpet and padding.
POWER UP
To activate tool, press and hold Power Button.
If button is not held, unit shuts off.
FIND A STUD
The tool is designed to locate the edges of wood and metal
studs up to
3
⁄
4
" (19 mm) behind the scanned surface.
The accuracy of the position of a stud found is typically
within
1
⁄
8
" (3 mm).
For best results, hold the tool as
shown (
Figure A
), and move
slowly when scanning.
Do not touch the surface
during calibration or scan.
1.
Hold tool flat against wall,
then press and hold Power Button.
In 1–2 seconds, the unit will calibrate,
and the Green READY Light will illuminate.
DO NOT MOVE TOOL DURING CALIBRATION.
2.
While holding down the Power Button, slide the tool
slowly along the wall.
3.
When the tool reaches the
edge of the stud, the Red EDGE
Light will illuminate, the SpotLite
Pointer will shine, and a steady
tone will sound. Mark the spot.
(
Figure B
)
4.
Without releasing Power
Button, continue the scan direction
until the Red EDGE Light and the
SpotLite Pointer turn off, then
reverse direction.
5.
Slide the tool until the other
edge of the stud is detected and
mark this as well. (
Figure C
)
The center of the stud is the
midpoint between the two marks.
Electrical wiring and pipes
Depending on the proximity
of electrical wiring or pipes to the wall surface, the tool
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.
Studs and joists
are normally spaced 16 or 24" apart
(40 or 60 cm), and are 1
1
⁄
2
" (38 mm) wide. Anything closer
together, or of a different width, may not be a stud or joist.
NOTE: Sensing depth and accuracy can vary
depending on scanning environment conditions
such as mineral content, moisture, texture and
consistency of the wall materials.
This tool is
not
designed for use with:
• Ceramic floor tile
• Carpeting and padding
• Wallpaper with metallic fibers
• Freshly painted walls that are still damp (may take one
week or longer to dry after application)
• Lath and plaster walls
• Foil-covered insulation board
• Glass or any other dense material
• Surfaces thicker than
3
⁄
4
" (19 mm)
LIMITED 1 YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the product
owner that this product will be free from defects in
materials and workmanship for one year from the
original date of purchase. Any defective product
returned to Zircon within the warranty period to the
address below, freight prepaid, along with proof of
purchase, will be repaired or replaced, at Zircon’s
option. Repair or replacement may be made with a
new or refurbished product or components, at Zircon’s
sole discretion. If the returned product is no longer
available, Zircon may replace the product with a
similar product of similar function. This warranty is
limited to the electronic circuitry of the product and
original case of the product, and specifically excludes
any damage caused by abuse, modification, handling
contrary to these instructions, other unreasonable use,
or neglect. This is your sole and exclusive remedy for
breach of this Limited Warranty.
This Limited Warranty is in lieu of all other warranties,
express or implied, and no other representations or
claims of a similar nature will bind or obligate Zircon.
Any implied warranties applicable to this product
that cannot be disclaimed are limited to the one year
period following its purchase. This Limited Warranty
does not cover consumable parts, including batteries,
or software, even if packaged with the product.
IN NO EVENT WILL ZIRCON BE LIABLE FOR ANY
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
RESULTING FROM POSSESSION, USE OR MALFUNCTION
OF THIS PRODUCT.
Some states do not allow limitations on certain
implied warranties and/or the limitation on incidental
or consequential damages, so the above limitations
and exclusions may not apply to you. This warranty
gives you specific legal rights, and you may also have
other rights which vary from state to state.
Return products for warranty service, freight prepaid
with proof of purchase (a dated sales receipt) to:
Zircon Corporation
Attn: Returns Department
1580 Dell Avenue
Campbell, CA 95008-6992 USA
Be sure to include your name and return address.
Allow 4–6 weeks for delivery.
Customer Service: 1-800-245-9265 or 1-408-963-4550
Monday–Friday, 8:00 a.m.–5:00 p.m. PT
[email protected] • www.zircon.com
©2018 Zircon Corporation • P/N 66091 • Rev C 05/18
SpotLite, StudSensor and Zircon are registered
trademarks or trademarks of Zircon Corporation.
BEFORE YOU BEGIN
ZIRCON
®
STUD FINDERS WORK BY SENSING DENSITY CHANGES BEHIND THE WALL. OTHER OBJECTS CAN BE DETECTED
ESPECIALLY IF THEY ARE VERY CLOSE TO THE WALL.
DO NOT ASSUME EVERYTHING DETECTED IS A STUD.
- Always use a new alkaline battery with an extended expiration date. Match battery direction to image inside of
battery cavity.
- Do not rely exclusively on the tool to locate items behind a surface. Use other information to help locate such items
before penetrating the surface, including construction plans, visible points of entry of pipes and wiring into walls such as
in a basement, and standard stud-spacing practices.
- Always scan for studs at several different heights on the wall and mark the location of every target indicated by the
stud finder. This is called “mapping the wall.” Pipes and other objects will likely not give consistent readings from floor
to ceiling, like a stud will.
- Readings should always be consistent and repeatable.
- Zircon stud finders are recommended for interior use only.
- Studs normally run from floor to ceiling, except above and below windows, and above doors.
- Other objects commonly contained in walls, floors, or ceilings are water pipes, gas lines, firestops, and electrical wiring.
- Sensing depth and accuracy can vary depending on scanning environment conditions such as mineral content, moisture,
texture and consistency of the wall materials.
- Always turn off power when working near electrical wires.
- Depending on the proximity of electrical wiring or pipes to the wall surface, the tool 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.
- Studs and joists are normally spaced 16 or 24" (40 or 60 cm) apart, are normally 1
1
⁄
2
" (38 mm) wide, and may be
separated by firestops. Anything closer together, or of a different width, may not be a stud or joist.
StudSensor
™
HD
25
Edge-Finding Stud Finder
EN
Visit www.zircon.com for the
most current instructions.
FCC Part 15 Class B Registration Warning: This device complies
with Part 15 of FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including
interference that may cause undesired operation.
ZirconCorporation
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SpotLite
®
Pointer
Stud Edge Groove
Battery Door Tab
(door on bottom)
Ergonomic Grip
Power Button
Red EDGE Light
Green READY
Light
Figure C
Figure B
Figure A
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION
LIKELY CAUSE
SOLUTION
No indications.
No studs in the area.
Move tool several inches (13–15 cm) to the left or right and start again.
READY Icon shows but
nothing happens when
scanning.
Tool may not be flat
against wall.
Hold tool so that the pads on the back make full contact with the surface.
Unit beeps repeatedly.
Tool was calibrated over a
stud or on dense part of wall. Turn tool off, move over a few inches (5–8 cm), press Power Button, and start again.
Tool tilted or lifted
during scan.
On rough surfaces, place thin cardboard on wall, scanning over it to help slide tool more
smoothly.
Tool detects objects
other than studs
or finds more studs
than should be there.
Electrical wiring and metal or
plastic pipes may be near to
or touching the back of the
wall surface.
•
Check for other studs equally spaced to either side at 12, 16 or 24" (30, 40, or 60 cm),
or check for the same stud at spots directly above or below the first scan area. Studs
will run straight up and down, from floor to ceiling, while pipes may change direction.
Standard studs measure approximately 1
1
⁄
2
" (38 mm) between edges. Anything larger or
smaller is likely not a stud (unless near door or window).
•
Use caution when nailing, sawing or drilling into walls, floors and ceilings where these
items may exist.
