Ryobi Estp004 Owner S Manual

2014-07-06

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Deep Metal
Wood Stud
Deep Metal

WOOD

ESTP004
StudTech Pro™

ESTP004
StudTech Pro™

Reminders:

AC

9 volt

MODE

• Toggle switch to select detection of wood/metal
studs (drywall depth up to 3/4”), deep wood/metal
studs (drywall depth up to 1-1/2”), and metal rebar.
• LCD bar graph readout
up to 1-1/2”
(not for Deep metal mode)
• Soft rubber grip
• High impact housing
• Auto power off after 2 minutes
when left unattended
• Low battery indicator
• 9 Volt battery included

SPECIFICATIONS

RYOBI TECHNOLOGIES INC.
1428 Pearman Dairy Road
Anderson, SC 29625
www.ryobitools.com
Telephone: 1-800-525-2579
The Ryobi Electronic StudTech Pro™ locates wood
and metal studs, metal rebar and hot unshielded AC
wiring in walls. It features a large LCD for easy read, a
high impact case for durability, and a soft touch rubber
grip. Use StudTech Pro™ to detect wood or metal
studs up to
1-1/2” (38mm) deep. For metal rebar in concrete,
StudTech Pro™ can detect up to 2” (51mm) deep.

WARRANTY

This product is a consumable item. Therefore it is
warranted against defective parts and labor only and
not misuse or deterioration of the product through
normal wear and tear for a period of 2 years from
date of purchase.

OPERATING NOTES
Depending on proximity of electrical wiring or pipes to
the wall surface, the StudTech Pro™ may detect them
in the same manner as wood or metal studs. Caution
should always be used when nailing, cutting or drilling
in walls, floors and ceiling that may contain these
items. To avoid electrical, plumbing, etc. remember
that studs or joist are normally spaced 16” (406mm)
or 24” (610mm) apart and are 1-1/2” (38mm) in width.
Anything closer together or a different width may not
be a stud, joist or rebar. Always turn off the power
when working near electrical wires.
983000-344
8-03

Deep Stud
Metal Stud

WOOD

ii. If no stud was found, the unit may have been
placed over a stud or the drywall is too thick. The
calibration.
user should re-calibrate the unit by powering it on
ii. If the calibration fails, the LCD will
Zebra
(LCD)
again
several inches left or right from the previous
display the error “Zebra” display.
Zebra (LCD)
location, or use Deep Stud mode for scanning studs
The unit may be over a
behind drywalls.
stud. The user should power off andWood
re-calibrate
the
Stud Deep Stud
unit by powering it on again several inches left or
Deep Metal
Metal Stud
AC
DETECTION
right from the previous location.
• Press the AC button “ “ to toggle the AC detection
SCANNING
ON and
OFF.
TheDeep
“AC”Stud
symbol will be displayed to
Wood
Stud
• All modes except Deep Metal have sequential level
indicate
that
AC detection
is now active.
Deep
Metal
Metal Stud
indicators ( bar graph) on the LCD.
• Sweep the unit against the wall, when hot
• After calibration has finished,
unshielded AC wiring presence is detected, the
slowly slide unit across wall
“lightning” symbol
will be displayed and a high
Zebra (LCD)
right or left. As you begin to
pitch sound will be generated.
approach a stud, the

i. The user is required not to move the unit during
Zebra (LCD)

FEATURES

DEEP WOOD METAL

• Toggle “mode” switch to “metal” to detect metal studs
up to 3/4” behind drywall.
• Toggle to “wood” mode to detect wood studs up to
3/4” behind drywall and metal studs up to 1” behind
drywall.
• Toggle to “deep” mode to detect wood and metal
studs up to 1-1/2” behind drywall.
• Toggle to “deep metal” to detect metal rebar up to 2”
deep in concrete.

WOOD

WOOD

WOOD

sequential levels on the LCD
will increase, and peak at the
stud edge for Wood Stud and Deep
Stud modes, and for Metal Stud mode. Mark this
spot to indicate stud edge.
• Continue scanning beyond the marked spot until
the peak level disappears then slide unit in reverse
direction to locate the other edge of stud. Mark this
second spot. Center of stud is the middle between
the two marks.

INSTALLING THE BATTERY

Reminders:

•
•
•
•

i. Deep Metal mode does not have any intermediate
levels, and will turn on all level segments
simultaneously when metal is detected.

Open battery door at the back of unit.
Attach a 9 Volt battery to the connector.
Put the battery into the compartment.
Close battery compartment door.

POWER ON
• Press and release the “ON/OFF” button to power on
the unit.

SELECT MODE

• Choose desired detection mode by cycling the
various modes with the “MODE” button on the front
face of unit.
Wood Stud Deep Stud
Deep Metal

Metal Stud

Situations
No indications.
Wood Stud
Deep Metal

Deep Stud
Metal Stud

Metal Stud

Reminders:
Wood Stud Mode - detect wood studs in drywall of
3/4” deep and detects in drywall meteal studs up to
1” deep.
Deep Stud Mode - detect wood and metal studs in
drywall of 1-1/2” deep. Zebra (LCD)
Metal Stud Mode - detect metal studs in drywall of
3/4” deep.
Deep Metal Mode - detect metal rebar within 2”

LCD shows “Zebra”

WOOD

WOOD

CALIBRATION

• When the unit powers on or the detection mode
is changed, the unit needs an initial calibration
before use for about 2 seconds. Hold the unit in still
position flat against the testing surface until the bar
graph on LCD disappears, and a beep sound is
heard, indicating successful calibration.

Zebra (LCD)

Indications in too
many places.

Possible Causes
• No studs in that area.
• You have accidentally
calibrated over a stud.
Over-the-stud calibration
error.
• Scan began on dense part
of wall or over stud.
• Unit not flat against wall.
• Unit was rocked or lifted
during scan.

POWER OFF
Zebra (LCD)
• Press and release
the ON/OFF button to power off the unit.
Reminders:
i. The unit will power off after being left unattended for
2 minutes. The built-in timer for the auto-off function
is reset when the mode button is pressed or the
peak indicator of the bar graph is turned on.
ii. The hourglass symbol “ “ will flash for 30 seconds
before power off.
iii.The unit will retain the status of selected mode and
AC function after power off.
LOW BATTERY DETECTION:
• When the battery is close to empty, the LOW
BATTERY icon “
“ will begin to flash.
Reminders:
i. Remove the battery to prevent deterioration if the
unit is to be stored for an extended period of time.

Solutions
• Move several inches to the left or right and start
again.
• Select “Deep” stud 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 Pro™ parallel to stud or joist
and move across it.

• Detect other objects
• Because studs are normally spaced 16 in. (406mm)
besides studs.
or 24 in. (610mm) apart and are 1-1/2 in. (38mm)
• Electrical wiring and metal/
wide, beware of anything closer together or of a
plastic pipes may be near
different width.
or touching back surface of wall

WARNING: To avoid risk of electric 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.



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