Thank you for purchasing General Tools & Instruments’ (General’s) TS01 ToolSmart
Laser Distance Measurer. Please read this user’s manual carefully and thoroughly
before using the instrument.
The Laser Distance Measurer (LDM) is designed to replace a tape measure for
professionals such as builders, architects, engineers, surveyors, carpenters,
plumbers, painters, electricians, realtors, home inspectors, HVAC system designers
and installers, and carpet/flooring installers and salesmen. The LDM works the
®
same whether used alone or in concert with an iOS
or Android™smartphone: it
projects a red laser beam onto a target and measures how long it takes the
reflected beam to return to the LDM. This time is proportional to the distance to the
target. The LDM’s range of 100 ft. (30m) makes it suitable for most indoor
measuring tasks and many outdoor jobs as well.
®
When used in concert with an iPhone
®
transmit—via Bluetooth
— to the mobile device all measurements and groups of
or Android™smartphone, the LDM can
measurements and calculations it makes. The phone initiates the data transfer
®
using a free app downloaded from the iTunes
App Store or Google Play Store.
Measured lengths, areas, perimeters and volumes can then be overlaid on photos
that the user can take using the app and the phone’s camera.
KEY FEATURES
• 100 ft. (30m) range
• Accuracy of ±1/16 in. (±1.5mm)
• Displays distances in feet with decimal fraction (default), feet + fractional inches,
inches or meters
• Calculates areas, perimeters and volumes
• Uses triangulation to calculate height or length from a distance
• Backlit 4-line LCD
• Continuous on-screen digital readout of LDM's angle with respect to the
horizontal in most measurement modes
™
iPhone®and iTunes®are trademarks of Apple Inc., registered in the U.S. and other countries.
™
is a trademark of Google Inc.
Android
The Bluetooth
General Tools & Instruments is under license.
®
word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by
3
• Addition, subtraction, and continuous measurement (tracking) modes ideal for
layout work
• Fast response time
• Automatically stores 20 most recent measurements/calculations
• References measurements from top or bottom of housing or end of extension
ruler
• Auto power off, auto laser off and auto backlight off
• Splashproof and dustproof to IP54 standard
• Pocket-sized and lightweight
• Powered by two “AAA” Alkaline batteries (included)
WHAT’S IN THE BOX
The LDM comes in a display box along with:
• A holster (soft pouch with a belt loop)
• Two “AAA” Alkaline batteries
• A small flat-head screwdriver for opening the battery compartment
• This user’s manual
PRODUCT OVERVIEW
Fig. 1 shows all of the controls on the LDM’s front panel. Fig. 2 shows all possible
display icons and indications. Familiarize yourself with the positions and functions
of these controls and indicators before moving on to the safety, setup and operating
instructions.
Adds/subtracts next measurement to/from previous one
3.
Recall mode, increments/decrements Record counter
4
. Press briefly to cycle through the five available
. In Memory
, with display
1
MEASURE
ON
CLEAR
OFF
▲
▼
3
2
4
5
7
Fig. 1
4.
Measurement button
Two-function button
5.
reference options: top and bottom of LDM housing, and bottom of extension ruler.
Press and hold to cycle through four available distance units.
6.
Enters Memory Recall mode
7.
Two-function button
last action or clear (reset to zero) the last measurement or calculation
Activates/deactivates Bluetooth transmission
8.
calculations
. Activates laser and makes measurement
. Press briefly to cycle through three measurement
. Press and hold to power LDM off. Press briefly to undo
of measurements and
6
8
5
Fig. 2. The LDM’s display indications and icons
1. Measurements referenced from top of LDM housing
2. Flashes when laser is on
3. Measurements referenced from bottom of LDM housing or bottom of
extension ruler
4. Operating in Direct or Continuous Measurement Mode
5. Operating error indication
6–10. Measurement type indicator
Distance (direct)
Distance (indirect—triangulation with two inputs)
Distance (indirect—triangulation with three inputs)
Area and perimeter
Volume
11. Battery charge indicator
12. No. of stored record displayed
13. Top display line
14. Value displayed on second line is a minimum
15. Second display line
16. Value displayed on third line is a maximum
17. Third display line
18. Bottom (summary) display line (shows last measurement or calculation
result)
19. Bluetooth transmission enabled icon
6
{
{
{
{
{
2
3
45
1 11 12
6,7,8,9,10
13
14
15
16
17
18
8
8
➤
11 12
1
2
13
14
3
4
5
6,7,8,9,10
19
Fig. 2
SAFETY INSTRUCTIONS
The LDM’s targeting laser is a Class 2 type that emits less than 1 mW of radiation
at a wavelength between 630 and 660 nanometers.
Avoid direct eye contact with the laser, and do not point it at people or animals. Eye
protection is normally afforded by the blink reflex. U.S. law prohibits pointing a laser
beam at aircraft; doing so is punishable by a fine of up to $10,000 and
imprisonment.
CAUTION!
15
16
17
18
7
SETUP INSTRUCTIONS
MEASURE
ON
CLEAR
OFF
MEASURE
ON
INSTALL BATTERIES
The LDM is ready to use after you install the two supplied “AAA”
batteries in a compartment in the back of the unit. To open the
compartment, use the included flat-head screwdriver to loosen
the single screw holding the battery compartment cover in place
(see photo at right). After opening the extension ruler, remove
the cover and set it aside. Position the batteries so their polarity
marks match the diagram inside the compartment. Replace the
cover and tighten the screw to secure it.
LIFT
COVER
HERE
SCREW
EXTENSION RULER
OPERATING INSTRUCTIONS
POWERING ON AND OFF
To turn the LDM on
backlight and laser. It also sounds a chirp, causes the laser icon (Callout 2 of Fig. 2)
to flash, and places the LDM in direct distance measurement mode.
While the LDM is powered on, any push of any button produces a chirp to confirm
that some action has taken place (a measurement was made, an operating mode or
measurement unit was changed, etc.). The only actions that are
by a chirp are the laser timing out (after 30 seconds of inactivity) for safety reasons
and the backlight timing out (after 10 seconds of inactivity) to conserve battery
charge. The LDM also chirps when it automatically powers off after 3 minutes of
inactivity. The chirp cannot be disabled.
To turn the LDM off
will respond with a chirp as it powers off.
, press and hold thebutton. This activates the display,
not
accompanied
manually, press and hold thebutton. The instrument
QUICK START INSTRUCTIONS
To make a quick distance measurement:
1. Power the LDM on.
2. Within 30 seconds, point the top of the instrument at a target and press the
button. The distance to the target—in the default measurement unit of
feet with decimal fraction—will be displayed on the bottom line of the display. The
top line will indicate the LDM’s angle with respect to the horizontal. When making
direct distance measurements, always orient the LDM so the top line reads close
to
0.0º
.
8
To temporarily change the distance measurement unit, follow the instructions
MEASURE
ON
on p. 10.
If the laser has timed out (i.e., it has been on for more than 30 seconds), or if you
have just made a measurement, you will not see a red dot on the target and there
will be no flashing icon (Callout 2 of Fig. 2) on the display.
To make a distance
measurement with the laser off, you must press thebutton
—once to activate the laser and once to make the measurement.
twice
See page 20 for additional operating tips.
CHOOSING A MEASUREMENT REFERENCE
The LDM can reference its measurements from the top or bottom of the housing, or
the bottom of the extension ruler (see photo on page 8 for its location).
For most distance measurements, choosing the bottom of the housing as the
reference produces the most accurate readings. Doing so allows you to hold the
bottom of the LDM horizontally against one wall of a room, or vertically against the
floor, and send the laser beam out the top of the unit toward the opposite wall or
the ceiling.
However, for continuous distance (tracking) measurements (see p. 11), using the
top of the LDM as the reference produces the most accurate readings. In tracking
mode, you typically walk the instrument back from a wall to a distance specified on
a blueprint. In this case, what you want to measure is the distance to the wall from
the top of the unit.
Thebutton on the front panel lets you select the bottom or top of the
housing, or the bottom of the extension ruler, as the measurement reference. The
three black icons shown in Fig. 3 below are the corresponding display indications.
When the LDM is powered off and on again, the measurement reference
automatically resets to the default: the bottom of the unit.
Fig. 3. Referencing
measurements
from the bottom (left)
and top (center)
of the LDM housing,
or the bottom of the
LDM’s extension ruler (right)
9
CLEARING VALUES/UNDOING ACTIONS
C
LEAR
OFF
MEASURE
ON
MEASURE
ON
When pressed briefly, the two-function button:
1. Works like the “Clear Entry” button on a calculator to clear the last value
entered in a calculation sequence
2. Works like the “Undo” command on a computer menu to cancel the last
action selected
CHANGING THE MEASUREMENT UNIT
The LDM’s default distance measurement unit is feet with decimal fraction. The
2
default area measurement unit is square feet, expressed as ft
3
measurement unit is cubic feet, expressed as ft
.
To temporarily change the distance measurement unit
. The default volume
, press and hold the
button as many times as necessary until the desired unit appears on the
bottom display line. The alternatives to feet with decimal fraction, in order, are
inches (in), feet + fractional inches (expressed as X'Y", where X is a whole number
and Y is a whole number plus a common fraction), and meters (m).
When the LDM is powered off and on again, the distance measurement unit
automatically resets to the default: feet with decimal fraction.
TURNING THE BACKLIGHT ON AND OFF
To turn the display backlight on
, briefly press the button. The backlight
will remain on for ten seconds and then automatically turn off (silently) to conserve
battery charge.
MEASURING DISTANCES
Direct Measurements
To measure the distance to a target:
1. Power on the LDM and select a measurement unit, an appropriate measurement
reference (in most cases, the bottom of the LDM) and an appropriate backlight
state (on for indoor work, off for outdoor work).
2. If the laser icon (Callout 2 of Fig. 2) is not flashing and the laser pointer is
not
visible, press thebutton to activate the laser. Doing so will sound a
chirp, cause the laser icon to flash, and place the LDM in direct distance
measurement mode.
3. After confirming that the laser is on, level the LDM horizontally by referring to the
top line of the display, aim the unit at a target, and press thebutton. The
10
LDM will chirp, and the distance to the target—in the default distance unit of feet
15
/
16
5’01”
0.0º
➤
0.0º
13
/
16
3
/
4
1
/
8
113 04
53 03
3 03
➤
with decimal fraction—will appear on the bottom line of the display.
To temporarily change the distance measurement unit, follow the instructions on
p. 10. Figure 4 is a screen shot of a measurement of
5 feet, 1 and 15/16 inches.
Fig. 4. A direct distance measurement of
5 feet, 1 and 15/16 inches
In direct distance measurement mode, you can display up to
three consecutive measurements in the order in which they
were made. Fig. 5 is a screen shot which shows the values
of three direct distance measurements made in top-tobottom order.
Fig. 5. Three direct distance measurements made in
This operating mode is ideal for transferring measurements
from construction plans or blueprints. In practice, you walk the LDM back from a
wall a specified distance while the unit tracks its own position by measuring the
distance to the wall twice per second. As you make these dynamic measurements
and you close in on the specified distance, the LDM takes note of the closest and
farthest you have been from the wall and displays these minimum and maximum
distances along with the final distance.
Before entering continuous distance measurement mode, be sure to temporarily
change the measurement reference from the bottom of the housing to the top by
briefly pressing thebutton (see p. 9). Next, hold the LDM horizontally with its
top against the wall. Then, after making sure that the laser is on, press the
button and back away from the wall while continuing to point the laser at the wall.
Initially (until the LDM reaches its minimum measurement distance of several
inches from the wall), the display will show an
minimum measurement threshold is passed, the LDM will begin to measure the
distance from to the wall twice per second. The measurements, accompanied by
chirps twice per second, will be shown and continuously updated on the bottom
line of the display. At the same time, the second and third display lines continuously
update the LDM’s minimum and maximum distance from the wall during this
measurement session.
Error 261
message. Once the
11
When you and the LDM reach the specified distance, press the button to
MEASURE
ON
MEASURE
ON
u
➤
0.0º
11.33
10.000
0.112
0.0º
16.325
18.415
2.090
➤
silence the chirping. The subsequent inactivity triggers the 30-second countdown
to laser power off and the 3-minute countdown to LDM power off. The LDM’s MIN,
MAX and current distance values remain on the display (Fig. 6) until it powers off
automatically.
Fig. 6. The results of using continuous measurement
to step off a specified distance (10m) from a
wall
Adding and Subtracting Distances
The LDM has a front-panel button that makes it easy to add
or subtract a distance measurement from an existing measurement, in effect
turning the earlier measurement into a baseline. This addition/subtraction function
comes in handy when accumulating multiple distance measurements.
For example, consider how the LDM could speed up the measurements needed to
lay out a long brick wall of multiple sections that are not in a straight line. Once
stakes, strings and frame are in place, the LDM could accurately measure the
length of each section by shooting from one stake to the next. It would also keep a
running total of these measurements and display the final result—the wall’s
perimeter—on its bottom line.
To add a measurement
briefly press th
bottom line to the second line and a flashingicon will appear at the left of five
dashes (representing the distance value to be added) on the third line. Then press
thebutton while aiming the laser
measurement was made
the dashes on the third line with that value, and display the sum of the two
measurements on the bottom line (Fig. 7).
Fig. 7. A display showing the addition of a 16.325 ft.
e
measurement to a measurement of 2.090 feet
to an existing measurement displayed on the bottom line,
button. The earlier measurement will be moved from the
at the point from which the first
. The LDM will measure the distance to that point, replace
To subtract a measurement
displayed on the bottom line, press and hold thebutton.
The earlier measurement will be moved from the bottom line
12
from an existing measurement
to the second line and a flashingicon will appear at the left of five dashes
MEASURE
ON
(representing the distance value to be subtracted) on the third line. Then press the
button while aiming the laser at the point from which the first
measurement was made. The LDM will measure the distance to that point, replace
the dashes on the third line with that value, and display the difference of the two
measurements on the bottom line.
Indirect Measurements of Height or Length using Triangulation
The LDM can use triangulation (one type of indirect measurement based on
Pythagorean geometry) to calculate the height or length of an object from a
distance. The instrument can perform three kinds of Pythagorean calculations:
Triangulation with two inputs.
•
This kind of distance measurement can be
made only for distances that present you with a right angle. A good example is
measuring the height of a building from across the street at ground level (Fig. 8).
Because the LDM and the bottom of the building are both at ground level, the side
of the building (whose height “A” is unknown) forms one leg of a right triangle
whose other leg is the distance across the street (“B” in the figure). In other
words, you can use triangulation to determine the height “A” using only two
inputs because “A” is perpendicular to “B”—one of the distances you can
measure. The LDM can measure “B” as well as the distance to the top of the
building (“C” in the figure), which is the hypotenuse of the right triangle. Once
the LDM has determined the values of “B” and “C”, it calculates the value of “A”
according to Pythagoras’ famous equation: A
2
+ B2= C2.
C
A
Fig. 8. Triangulating a height using two inputs
B
•
Triangulation with three inputs.
made for distances that do
not
This kind of distance measurement can be
present you with a right angle. A good example is
measuring the height of a building from another building across the street through
an open fourth-floor window (Fig. 9). Because the LDM and the bottom of the
target building are not both at ground level, you must measure one common leg
“B1/B2” (which is perpendicular to the wall of the building) and the hypotenuses of
13
two right triangles “C1” and “C2”. Once these two values are known, the LDM can
MEASURE
ON
MEASURE
ON
solve two Pythagorean equations for the missing values of the other two legs
(“A1” and “A2”). The final calculation, which solves for A—the height of the
building—is A = A1 + A2.
C1
Fig. 9. Triangulating a height using three inputs
A1
B1/B2
• Auto height measurement. Using a slightly
different technique (see Fig. 10), the LDM can
quickly calculate the height of any object using
C2
A=A1+A2
A2
only two inputs.
Fig. 10. Automatic calculation of a height using
two inputs
To measure the height of an object using triangulation
with two inputs:
1. First make sure that the line of sight from the LDM to the bottom of the object
forms a right angle.
2. Use the button to choose the top of the LDM as the measurement
reference. Also make sure the laser is on.
3. Press the button three times. A icon will appear on the left side of the
display with the hypotenuse flashing.
4. Aim the laser at the top of the object and press thebutton. The distance
measured (the hypotenuse) will appear on the second line of the display and the
horizontal leg of the on-screen triangle will begin flashing.
5.
Without moving the LDM
, and keeping it as horizontal as possible, aim the laser
at the bottom of the object and press thebutton. The distance measured
will appear on the third line of the display and the height of the object will appear
on the bottom (summary) line. The final display will look similar to Fig. 11 at the
top of the next page.
14
Fig. 11. A two-input indirect measurement of the
MEASURE
ON
MEASURE
ON
MEASURE
ON
MEASURE
ON
MEASURE
ON
0.0º
5.846
4.990
7.687
height of a tree standing 4.990 meters tall
To automatically measure the height of any object
using triangulation with two inputs:
Use the button to choose the top of the LDM as the
1.
measurement reference. Also make sure the laser is on.
2.
Press the button five times. An isosceles triangle will appear on the left side
of the display with its upper leg flashing.
3.
Aim the laser at the top of the object and press thebutton. The distance
measured will appear on the second line of the display and the triangle's lower
leg will begin flashing.
4. Without moving the LDM
, press thebutton again. The distance
measured will appear on the third line of the display and the height of the object
will appear on the bottom (summary) line.
To measure the height of an object using triangulation with three inputs:
1.
Use the button to choose the top of the LDM as the measurement
reference. Also make sure the laser is on.
2.
Press the button twice. Aicon will appear on the left side of the display
with the upper hypotenuse flashing.
3.
Aim the laser at the top of the object and press thebutton. The distance
measured will appear on the top line of the display and the horizontal line
bisecting the on-screen triangle will begin flashing.
4. Without moving the LDM
and keeping it as horizontal as possible, aim the laser
directly at the object and press thebutton. The distance measured will
appear on the second line of the display, the horizontal line will stop flashing, and
the lower hypotenuse will begin flashing.
5. Without moving the LDM
, aim the laser at the bottom of the object and press
thebutton. The distance measured will appear on the third line of the
display and the height of the object will appear on the bottom (summary) line.
The final display will look similar to Fig. 12 at the top of the next page.
15
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