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 9V alkaline battery with an extended expiration date at least 3 years beyond the current 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 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 start your scan in StudScan Mode which scans through surfaces up to 19 mm deep. Scanning in DeepScan
®
Mode may detect an object further behind the wall that may or may not be a stud.
- 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 40 or 60 cm apart on centre, are normally 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
45
Edge-Finding Stud Finder
Visit uk.zircon.com for the
most current instructions.
LIMITED TWO-YEAR WARRANTY
Zircon Corporation (“Zircon”) warrants to the
original purchaser (or original user by gift) that this
product will be free from defects in materials and
workmanship for two years from date of purchase.
This warranty is limited to the electronic circuitry of
the product, and specifically excludes consumable
parts, including batteries, and software, even if
packaged with the product. Defects caused by abuse,
modification, handling contrary to these instructions,
other unreasonable use, or neglect are not covered
under this warranty. No liability is accepted for
normal wear and tear and minor defects which do not
detract from the function of the product. This Limited
Warranty is in addition to the statutory rights to
which purchaser is entitled and which are not limited
by this warranty.
THIS LIMITED WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IF ANY IMPLIED
WARRANTIES ARE APPLICABLE, THEY ARE LIMITED TO
THE TWO-YEAR PERIOD DEFINED ABOVE. IN NO EVENT
WILL ZIRCON BE LIABLE FOR ANY SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM POSSESSION, USE, OR MALFUNCTION OF THIS
PRODUCT. NO OTHER REPRESENTATIONS OR CLAIMS OF
A SIMILAR NATURE WILL BIND OR OBLIGATE ZIRCON.
Any in-warranty defective product returned to the
place of purchase with original proof of purchase
will be replaced or purchase price refunded at
retailer’s option. This Limited Warranty applies only
to products purchased within the European Economic
Area and United Kingdom. For warranties applicable to
Zircon products purchased in other geographical areas,
see www.zircon.com/warranty.
For questions about this warranty or
Zircon products, contact:
Customer Service:
+1-408-963-4550 Monday–Friday,
8:00 a.m. to 5:00 p.m. PST
www.zircon.com • info@zircon.com
©2020 Zircon Corporation • P/N 71124 • Rev A 07/20
DeepScan, SpotLite, StudSensor, WireWarning,
and Zircon are registered trademarks or trademarks
of Zircon Corporation.
Figure A
Figure C
Figure B
Figure D
Figure E
SpotLite
®
Pointer
Stud Edge Groove
Battery
Door Tab
Ergonomic Grip
Power Button
Red EDGE Light
WireWarning
®
Detection Indicator
Mode Selector Switch
Green READY
Light
Figure F
TROUBLESHOOTING & CONSTRUCTION TIPS
SITUATION
LIKELY CAUSE
SOLUTION
All lights turn on at the
same time and the tool
beeps continuously.
Tool not held flat
against wall.
• Hold the tool with thumb on one side and fingers on the other side. Do not touch the
surface being scanned or the scanning head of the tool.
• Move the tool straight up and down, parallel to the studs. Do not rotate the tool.
Tool tilted or lifted
during scan.
• Move Mode Selector Switch to enter DeepScan
®
Mode.
• When scanning an uneven surface, place thin cardboard on the surface to be scanned
and scan over the cardboard in DeepScan
®
Mode.
Scanning surface is too
dense or too wet for tool
to operate.
If tool is used on a recently taped, painted, or wallpapered wall, allow time to dry
and try again.
Unable to detect studs in
StudScan Mode.
Wall is thick or dense.
Switch to DeepScan
®
Mode to locate the stud.
Green READY Light
illuminates but
nothing happens
during scan.
Tool may not be flat
against wall.
Hold tool so that the pads on the back make full contact with the surface.
Calibration may have
occurred over a stud in
DeepScan
®
Mode.
Recalibrate in a different area, then continue the scan.
Can't detect studs in
DeepScan
®
Mode.
Calibration may have been
over a stud.
Move the unit to a different area, then scan again. Also ensure that the tool is held
against the wall as shown in illustrations.
Tool detects objects
other than studs, or finds
more studs than should
be there.
Electrical wiring and metal
or plastic pipes may be near
or touching the back of the
wall surface.
Check for other studs equally spaced to either side at 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 38 mm between edges. Anything larger or smaller is likely not
a stud (unless near door or window).
Area of voltage detection
is too large.
Voltage detection can
spread on drywall by as
much as 30 cm on each
side of the wire.
Narrow the scan detection:
1.
Turn tool off.
2.
Turn it on again at the edge of where the
wire was first detected.
3.
Repeat scan.
Electrical wires suspected,
but WireWarning
®
Detection does not alert.
Wires are shielded by a
metal conduit, braided wire
or metallic wall covering.
If there is an outlet switch, turn it to ON position while scanning, but turn OFF when
working near the wires.
Use extra caution if the area has plywood, thick wood
backing behind drywall, or walls that are thicker than normal.
Wires deeper than 50 mm
from the surface might not
be detected.
See above.
Wires may not be live.
Plug a lamp into the outlet and turn it on to test whether wires are live.
2 scanning modes:
• StudScan
locates edges of stud (wood or metal)
up to 19 mm deep
• DeepScan
®
locates edges of stud up to 38 mm deep
WireWarning
®
Detection
automatically detects and
alerts for live, unshielded AC (alternating current)
wires in both modes. When AC voltage is detected,
the WireWarning
®
Detection Indicator illuminates.
INSTALL 9-VOLT BATTERY
Always use a new alkaline
battery
with an extended expiration date at
least 3 years beyond current date.
Match battery direction to image
inside of battery cavity.
WARNING
Do not rely exclusively on the
scanner 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.
POWER UP
Move Mode Selector Switch to desired mode:
StudScan
or
DeepScan
®
.
To activate tool, press and hold Power Button.
If button is not pressed and held, unit shuts off.
WIREWARNING
®
DETECTION
The Zircon
®
WireWarning
®
Detection
feature works continuously in
both modes. When live,
unshielded AC voltage is detected,
the WireWarning
®
Detection
Indicator illuminates. If scanning
begins over a live, unshielded
AC wire, the indicator will
flash continuously. (
Figure F
)
Use extreme caution under these circumstances, or whenever
live AC wiring is present.
WARNING
THE TOOL MAY NOT DETECT LIVE
CURRENT IF WIRES ARE MORE
THAN 50 mm BELOW THE SCANNED SURFACE,
IN CONCRETE, ENCASED IN CONDUIT,
BEHIND A PLYWOOD SHEAR WALL OR METALLIC
WALL COVERING, OR IF MOISTURE IS PRESENT
IN THE ENVIRONMENT OR SCANNED SURFACE.
WORKING WITH DIFFERENT MATERIALS
This tool can scan effectively through most sheet
materials, including:
• Bare wood flooring (in DeepScan
®
Mode)
• Linoleum on wood base
• Gypsum drywall over plywood sheathing
• Walls with wallpaper (if dry)
• Textured ceilings with uniform thickness (place a thin
piece of cardboard on ceiling and scan over it to avoid
damage to texturing)
It is
not
designed for use with:
• Ceramic tile, slate, granite, marble and other
rock surfaces
• Carpeting and padding
• Wallpaper with metallic fibres
• Freshly painted walls that are still damp (may take one
week or longer to dry after application)
• Lath and plaster walls
• Foil covered insulation
• Glass or any other dense material
• Bathroom inserts such as bathtubs and showers
• Surfaces thicker than 38 mm
FIND A STUD
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, the lights and
SpotLite
®
Pointer will flash,
the tool will beep, 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. (
Figure B
)
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 C
)
4.
Without releasing
Power Button, continue the scan
direction until the Red EDGE Light
and the SpotLite
®
Pointer turn off,
then reverse direction. (
Figure D
)
5.
Slide tool until the other edge
of the stud is detected, and mark
this as well. (
Figure E
)
The centre of the stud is the
midpoint between the two marks.
DEEPSCAN
®
MODE
DeepScan
®
Mode will detect studs up to 38 mm deep,
or twice the depth of StudScan. Move the Mode Selector
Switch to DeepScan
®
Mode, then follow steps 1 – 5 under
FIND A STUD.
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.
OVER-THE-STUD WARNING
If scanning begins directly over a stud, the tool will emit a
continual beep and the lights will flash.
If this happens, restart the scan in a different location.
Wallpaper
This tool functions normally on walls
covered with wallpaper or fabric, unless the materials
are metallic foil, contain metallic fibres, or are still wet
after application. Wallpaper may need to dry for several
weeks after application.
Freshly painted walls
It 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 and
scan over the cardboard in DeepScan
®
Mode.
Wood flooring, subflooring, or gypsum drywall
over plywood sheathing
Use DeepScan
®
Mode and
move the tool slowly.
This tool cannot scan for studs and joists through carpet
and padding.
NOTE: Sensing depth and accuracy can vary
depending on scanning environment conditions
such as mineral content, moisture, texture and
consistency of the wall materials.
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 40 or 60 cm apart
and are 38 mm wide. Anything closer together, or of a
different width, may not be a stud or joist.
GB
