Zircon ONESTEP I65 User Manual
Studsensor, 65 onestep, Multifunction stud finder
Extremely textured walls or acoustic
ceilings: When scanning a ceiling or wall
with an uneven surface, place thin cardboard
on the surface to be scanned and scan over
the cardboard. Calibrate with cardboard in
place, in High Sensitivity mode.
Wood flooring, subflooring, or gypsum
drywall over plywood sheathing:
Use the High Sensitivity mode and move the
tool slowly. The Signal Strength Indicator
may only display 1 or 2 bars when the tool
locates a stud through thick surfaces.
Lath & plaster: Due to irregularities in
plaster thickness, this tool is not
recommended for use on lath & plaster.
i 65 cannot scan for wood studs and joists through
carpeting and pad. In Stud Scan mode, the StudSensor
i 65 will
NOT be able to scan through dense materials such as glass,
ceramic tile, and foil.
Note: Sensing depth and accuracy can vary due to moisture,
content of materials, wall texture, and paint.
detection works continuously. When live
AC voltage is detected, the AC WireWarning
appear in the display.
If scanning begins over a live AC wire, the AC WireWarning
indicator will flash continuously.
CAUTION: Wires deeper than 2 in. (51 mm) from the surface,
in plastic conduit, behind plywood shear wall, or metallic
wall covering may not be detected. Metal shielded wires or
those in metal conduit will not be detected. Use extreme
caution under these circumstances or whenever live AC
wiring is present.
Always turn off power when working near electrical wires.
8. SCANNING DIFFERENT SURFACES
Freshly painted walls: May take one week or longer to dry
Wallpaper: The StudSensor
i 65 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.
5. DIFFICULTY LOCATING A STUD?
TRY HIGH SENSITIVITY MODE
If you have difficulty locating a stud after
following Step 4, it could be that the stud is
deep (the walls are thick). With the unit still
placed flat against the wall and turned on,
quickly (within one second) release and re-press
the Power button. The Stud Scan mode indication
will flash continuously, indicating that the tool
has entered High
The center of a very
deep stud will be
indicated by the four
6. MARKING THE CENTER OF THE STUD
Once an object is located, mark the location
where the SpotLite
Pointing System illuminates.
This is the center of the stud.
Multifunction Stud Finder
The Zircon StudSensor
i 65 OneStep
detects both the center
and edges of wood and metal studs and joists in walls, floors,
and ceilings in one step. It features a durable high-impact case
and the patented SpotLite
Pointing System. It also has
detection to continually detect hot AC voltage
when scanning for studs.
Note: This product is intended for use in
the U.S.A. and Canada only.
(back of unit)
Edge or Center
Stud Scan Mode
LIMITED 1 YEAR WARRANTY
Zircon Corporation, (“Zircon”) warrants this product to be free from defects in materials and workmanship for one year
from the date of purchase. Any in-warranty defective product returned to Zircon*, freight prepaid with proof of purchase
date and $5.00 to cover postage and handling, will be repaired or replaced at Zircon’s option. This warranty is limited to
the electronic circuitry and original case of the product and specifically excludes damage caused by abuse, unreasonable
use or neglect. This warranty is in lieu of all other warranties, express or implied, and no other representations or claims
of any nature shall bind or obligate Zircon. Any implied warranties applicable to this product are limited to the one year
period following its purchase. IN NO EVENT WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES RESULTING FROM POSSESSION, USE OR MALFUNCTION OF THIS PRODUCT.
In accordance with government regulations, you are advised that: (i) some states do not allow limitations on how long
an implied warranty lasts and/or the exclusion or limitation of incidental or consequential damages, so the above
limitations and/or exclusions may not apply to you, and further (ii) this warranty gives you specific legal rights and you
may also have other rights which vary from state to state.
Return product freight prepaid with proof of purchase date (dated sales receipt) and $5.00 to cover postage and handling, to:
*Attn: Returns Department
1580 Dell Avenue
Campbell, CA 95008-6992 USA
Be sure to include your name and return address. Out of warranty service and repair, where proof of purchase is not provided, shall be
returned with repairs charged C.O.D. Allow 4 to 6 weeks for delivery.
Customer Service, 1-800-245-9265 or 1-408-963-4550
Monday–Friday, 8:00 a.m. to 5:00 p.m. PST
www.zircon.com • firstname.lastname@example.org
U.S. Patents 6023159, 6259241, 6291970, 6989662, 7116091, 7148703, Canadian Patents 2141553, 2341385, 2353156,
and Patents Pending, Japanese Patents 3581851, 4152361, and Patent Pending, German Patent 69333884.9, French Patent 0657032,
UK Patent 0657032, E.U. Patents Pending.
©2009 Zircon Corporation • P/N 60546 • Rev B 06/09
4. FINDING A STUD
Always start with the scanner placed flat against the wall, then
press the Power button. Wait for beep to confirm calibration has
completed before moving tool.
Slowly slide tool across
surface. EDGE indication
will illuminate, indicating
location of the stud edge.
Continue sliding tool. When
the center of stud is located
with three bars on the Signal
Strength Indicator, the four
Middle bars, CENTER indication,
will all illuminate, and the
buzzer will sound.
In cases of deeper studs
(thicker walls) when the center
of the stud is located only two
bars will show on the Signal
Strength Indicator and only
beam and four
Middle bars will illuminate. If
you still can’t locate a stud, try
the next step.
Note: The tool may detect other objects behind the wall such
as pipes and conduit. See Section 2: Operating Tips for ways
to confirm that you found a stud.
1. INSTALLING THE BATTERY
Press battery door release in with your finger or a coin and lift
up to remove door.
Place 9-volt battery into the compartment and press into place.
Replace battery door and snap shut.
2. OPERATING TIPS
For optimum scanning results, it is important to properly hold
i 65 and move slowly when scanning. The following
tips will provide more accurate scanning results:
• Grasp the handle with your thumb on one side and your
fingers on the other side. Make sure your fingertips are resting
on or above the running
board and not touching
the surface being
scanned or the scanning
head of the tool.
• Hold the tool straight
up and down, parallel
to the studs, and do not
rotate the tool.
• Keep the tool flat against the wall and do not rock or tilt the
tool when slowly sliding across the surface being scanned.
• Avoid placing your other hand, or any other part of your body,
on the surface being scanned. This will interfere with the
• Depending on the proximity of electrical wiring or pipes to the
wall surface, the scanner 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 surprises, remember that studs or joists are normally
spaced 16 in. (406 mm) or 24 in. (610 mm) apart and are
in. (38 mm) in width. Anything closer together or a
different width may not be a stud, joist, or firebreak.
Always turn off power when working near electrical wires.
3. TURNING ON/CALIBRATING THE TOOL
• Place StudSensor
i 65 flat against the wall, then press and
hold the Power button. The LCD will display all icons until
calibration is complete. Upon completion of calibration, the
Pointing System and buzzer will momentarily
activate and the tool will begin continuous measurements.
Note: It is important to wait for calibration to complete
(1–2 seconds) before moving the scanner.
(Auto Correcting Technology): During scanning, the
tool will provisionally recalibrate itself when needed. This
recalibration is usually transparent and no indication is made.
If an arrow icon illuminates,
the tool was calibrated near
or over a stud and then
moved away. The arrow
indicates the direction of
the missed stud.
Visit www.zircon.com/support for the most current instructions.
ACT, CenterVision, OneStep, SpotLite, StudSensor, WireWarning, and Zircon are registered trademarks or trademarks of Zircon Corporation.
All LCD segments
turn on at the same
time and the unit
Detects other objects
electrical wires, but
do not detect any.
Area of voltage
detection is too large.
• Unit not flat against wall.
• Unit tilted or lifted during scan.
(All these factors affect proper calibration.)
• Scanning surface is too dense or too wet for unit
• Electrical wiring and metal or plastic pipes may be near or
touching back surface of wall.
• Wires are shielded by metal conduit, a braided wire layer,
behind metallic wall coverings, plywood shear wall, or
other dense material.
• Wires may not be live.
• Wires deeper than 2 in. (51 mm) from surface might not
• Voltage detection can spread on drywall as much as
12 in. (305 mm) from each side of an actual electrical wire.
• When scanning an uneven surface, place thin cardboard on the surface to be scanned and scan over the cardboard
in High Sensitivity mode.
• Grasp the handle with your thumb on one side and your fingers on the other side, not touching the surface
being scanned or the scanning head of the tool.
• Hold the tool straight up and down, parallel to the studs, and do not rotate the tool.
• If you are using unit on a recently taped, painted, or wallpapered wall, allow time to dry and try again.
• While unit is still on, quickly release and re-press the power button to enter High Sensitivity mode.
• Check for other studs equally spaced to either side 12, 16, or 24 in. (305, 406 mm, or 610 mm) apart or check
for the same stud at several places directly above or below the first finding. Studs will run straight up and down
from floor to ceiling while pipes may change direction.
• A stud reading would measure approximately 1
in. (38 mm) apart from each edge; anything larger or smaller
is most likely not a stud if not near a door or window.
• Use extra caution if the area has plywood, thick wood backing behind drywall, or thicker-than-normal walls.
• If a switch controls an outlet, make sure it is ON for detection, but turned off when working near electrical wires.
• To narrow detection, turn unit off and on again at the edge of where wire was detected and scan again.
9. HELPFUL HINTS
(See also number 2, Operating Tips)
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