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EN

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.

WIREWARNING

®

 DETECTION

WireWarning

®

 Detection works 

continuously during a scan. 
When live, unshielded AC voltage 
is detected, the WireWarning

®

 

Detection Indicator lights up.  
If scanning begins over a live  
AC wire, the WireWarning

®

 

Detection Indicator will  
flash continuously. (

Figure D

)

Use extreme caution under these circumstances,  
and whenever live AC wiring is suspected.

WARNING

THE TOOL MAY NOT DETECT LIVE 

CURRENT IF WIRES ARE MORE  

THAN 2" (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.

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.

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.

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.

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)

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

™ 

L

30 

Edge-Finding Stud Finder

SpotLite

®

 Pointer

Stud Edge Groove

Battery Door Tab 
(door on bottom)

WireWarning

®

 

Detection Indicator

Ergonomic Grip

Power Button

Red EDGE Light

Green READY 
Light

Figure C

Figure D

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.

Electrical wires 
suspected but 
WireWarning

®

 Detection 

does not alert.

• Wires are shielded by a 
metal conduit, braided wire, 
or metallic wall covering.
• Wires deeper than 2" 
(50 mm) from the surface 
might not be detected.
• Wires may not be live.

• 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.

 

• See above.
• Plug a lamp into the outlet and turn it on to test whether wires are live.

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.

LIMITED LIFETIME 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 
its useful life (not to exceed twenty 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 LIFETIME WARRANTY IS IN LIEU OF ALL 
OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING 
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
FITNESS FOR A PARTICULAR PURPOSE.  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.
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. This Limited Lifetime 
Warranty applies only to products purchased within the 
United States of America (USA) and Canada. For warranty 
applicable to products purchased in all other geographical 
areas, see www.zircon.com/warranty.

Any in-warranty defective product returned to Zircon, 
freight prepaid, along with dated purchase receipt and 
$10.00 to cover shipping and handling, will be repaired  
or replaced, at Zircon’s option. If the returned product  
is no longer available, Zircon may replace the product  
with a similar product of similar function. This is your  
sole and exclusive remedy for breach of this Limited 
Lifetime Warranty. To return product, call the Zircon 
Customer Service number below to request an RMA 
number and return product with shipment tracking to:
Zircon Corporation 
Attn: Returns Department 
1580 Dell Avenue 
Campbell, CA 95008-6992 USA
Include your name, return address, RMA number, and 
package tracking number. Allow 4 to 6 weeks for delivery.
If you do not agree to the terms of this Limited Lifetime 
Warranty, you may not use this product and must promptly 
return it to the retailer, along with a dated purchase 
receipt within 30 days of purchase for a refund of the 
purchase price.
Customer Service: 1-800-245-9265 or 1-408-963-4550 
Monday–Friday, 8:00 a.m.–5:00 p.m. PST 
www.zircon.com • [email protected]
©2020 Zircon Corporation • P/N 71891 • Rev A 12/20 
SpotLite, StudSensor, WireWarning, and Zircon  
are trademarks or registered trademarks of  
Zircon Corporation.

Содержание StudSensor L30

Страница 1: ...oor 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 sc...

Страница 2: ...te 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 SpotLite Pointer Stud Edge Groove Battery Door Tab door on bottom WireWarning Detection Indicator Ergonomic Grip Power Button Red EDGE Light Green READY Light...

Страница 3: ... 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 t...

Страница 4: ...ircumstances and whenever live AC wiring is suspected WARNING THE TOOL MAY NOT DETECT LIVE CURRENT IF WIRES ARE MORE THAN 2 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 WARNING DO NOT ASSUME THERE ARE NO LIVE ELECTRICAL WIRES IN THE WALL DO NOT TAKE ACTIONS THAT C...

Страница 5: ...nd 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 11 2 38 mm wide Anything closer together or of a different width may...

Страница 6: ...r 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 11 2 38 mm between edges Anything larger or smaller is likely not a stud unless near door or window Use caution when nailing...

Страница 7: ...ific legal rights and you may also have other rights which vary from state to state This Limited Lifetime Warranty applies only to products purchased within the United States of America USA and Canada For warranty applicable to products purchased in all other geographical areas see www zircon com warranty Any in warranty defective product returned to Zircon freight prepaid along with dated purchas...

Страница 8: ...istration 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 ...

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