Bosch Glr 225 Laser Distance Measure R Manual

							Automatic switch-off after 
approx..  
–Laser
–Rangefinder (Without measurement)
Weight according to 
EPTA-Procedure 01/2003  
Protection class (excluding 
battery compartment) 20 s 
5 min
6.35 oz (0.18 kg) 
IP 54 (dust and Splash water 
protected)
-11-
A) The working range increases 
depending on how well the laser
light is reflected from the surface
of the target (scattered, not
reflective) and with increased
brightness of the laser point to the 
ambient light intensity (interior 
spaces, twilight). In unfavorable
conditions (e.g. when measuring
outdoors at intense sunlight), it
may be necessary to use the 
target plate. 
B) In unfavorable conditions (e.g.
at intense sunlight or an 
insufficiently reflecting surface), 
the maximum deviation is ±10 mm
per 70m (±7/16 in per 230 ft). In
favorable conditions, a deviation
influence of ±0.05 mm/m (±1/64 in per 26 ft) must be taken into
account. 
C) In the Min. /Max. measurement 
function, the maximum operating 
temperature is +40 °C (104 *F). 
D) Fewer measurements are
possible when using 1.2 V 
rechargeable batteries as
compared with 1.5 V batteries. 
Please observe the article 
number on the type plate of your
measuring tool. The trade names of the individual measuring tools
may vary. 
The measuring tool can be clearly 
identified with the serial number
20 on the type plate.   
						

							INITIAL OPERATION
  Protect the rangefinder against    moisture and direct sun  
  irradiation.
  Do not expose the rangefinder    to extreme temperatures or 
  variations in temperature. 
Switching On and Off
To  switch on the rangefinder,
briefly press the On/Off button  14
or measuring button  10. When
switching on the rangefinder, the  laser beam is not switched  
on yet. 
To 
switch off the rangefinder, 
press and hold the On/Off/clear  
button  14for a few seconds.
To save the batteries, the
rangefinder switches off
automatically after approx.. 5
minutes when no measurement
is carried out. 
When a measured value has 
been stored, it is retained in
automatic switch-off mode. 
-12-
Inserting/Replacing the Battery 
Use only alkali-manganese or 
rechargeable batteries. 
Fewer measurements are 
possible when using 1.2 V 
rechargeable batteries as
compared with 1.5 V batteries. 
To open the battery lid  19, press
the latch  18 in the direction of
the arrow and remove the battery 
lid. Insert the batteries provided.
Pay attention to the correct
polarity of the batteries according
to the representation in the
battery compartment. 
When the battery symbol appears
in the display for the first time, then 
at least 100 measurements are still
possible. The batteries must be
replaced when the battery symbol  flashes; taking measurements is 
no longer possible. 
Always replace all batteries at 
the same time. Only use
batteries from one brand and
with the identical capacity. 
   
Remove the batteries from 
   the rangefinder when not  
   using it for extended 
   periods. When storing for 
   extended periods, the batteries
   can corrode and discharge 
   themselves.
INSTALLING HAND STRAP
Feed string loop on end of hand
strap  24under hand strap
mounting post  27and pull out on
other side. Feed hand strap  24
through string loop end and  pull tight.
Preparation
Operation 
						

							-13-
When switching on the
rangefinder again,  “M”is
indicated in the display. 
Measuring Procedure
The rangefinder offers a variety 
of different measuring modes that
can be selected by pushing the 
corresponding mode button (see 
“Measuring Mode”). After
switching on, the rangefinder is in
the “length measurement mode”. 
Also, it is possible to select any of 
the four different reference points
for the measurement by pushing
the reference point button  1(see
“Selecting the Reference Point”).
After switching on, the rear edge
of the rangefinder is preset as the 
reference point. 
Upon selection of the measuring 
mode and the reference point, all 
further steps are carried out by 
pushing the measuring 
button  10.
With the reference level selected,
place the rangefinder against the
desired measuring line 
(e.g. a wall). 
Push the measuring button  10to
switch on the laser beam.
Do not point the
laser beam at persons or 
animals and do not look into
the laser beam yourself, not
even from a large distance. 
Aim the laser beam at the target 
surface. Push the measuring
button  10again to initiate the
measurement. In the continuous laser beam
mode, the measurement already
starts upon first actuation of the
measuring button 
10.
The measured value appears
after 0.5 to 4 seconds. The
duration of the measurement
depends on the distance, the
light conditions and the reflection
properties of the target surface.
The end of the measurement is
indicated by a signal tone. The
laser beam is switched off
automatically upon completion of
the measurement. 
When no measurement has taken place approx.. 20 seconds 
after sighting, the laser beam is
switched off automatically to save
the batteries.
Selecting the Reference Point (see figures B–E)
For measuring, it is possible to
select from four different 
reference points: 
   the rear edge of the     rangefinder (e.g., when placing 
   the measuring rangefinder 
   flush against a wall),
   the rear edge of the extension     pin  15(e.g., for measurements
   out of corners).
   the front edge of the     rangefinder (e.g., as when 
   measuring from the edge of a 
   table onward),
   the center of the 1/4” threaded     hole  17(e.g., for measuring 
   with the tripod).
!WARNING 
						

							-14-
To select the reference point, 
push button 1repeatedly until the
required reference point is 
indicated in the display. Each
time after switching on, the rear
edge of the rangefinder is preset
as the reference point.
Changing the Unit of Measure
The unit of measure can be
changed any time for display of
the measured values, even for 
already measured or calculated 
values. 
For display of the current length 
measurement values, the units of 
measure shown above are 
available. 
Area and volume values as well 
as stored measured values can 
only be displayed in “ft” or “m”. 
To change the unit of measure, 
push button  13until a new unit of
measure is displayed. 
The unit-of-measure setting is 
retained when switching the 
rangefinder on or off.
Continuous Laser Beam
If required, the rangefinder can
be set so that the laser beam
stays on in between measurements. For this, Briefly push button 
13. The indication
“ LASER ” lights up continuously
in the display.
Do not point the 
laser beam at persons or
animals and do not look into
the laser beam yourself, not
even from a large distance. 
In this setting, the laser beam 
also remains switched on 
between measurements; to take
measurement, it is only required
to push the measuring button 
10 once.
To switch off the continuous laser
beam, briefly push button  13
again or switch the rangefinder
off. When switching on again, the
rangefinder is in the normal
operation; the laser beam only
appears when pushing the 
measuring button  10.
MEASURING  MODES Length Measurement
For length measurements, push 
button  5until the indicator for
length measurement
appears in the display.
Press the measuring button  10
once for sighting and once more
to take the measurement. 
The measured value is indicated 
at the bottom in the display.
!WARNING 
						

							-15-
Area Measurement
For area measurements, push 
button  5until the indicator for
area measurement
appears in the display. 
Afterwards, measure the length 
and the width, one after another,
in the same manner as a length
measurement. The laser beam
remains switched on between
both measurements. 
After taking the second  
measurement, the area is
automatically calculated and 
displayed. The last individual 
measured value is indicated at 
the bottom in the display, while
the final result is shown at 
the top.
Volume Measurement
For volume measurements, push 
button  5until the indicator for 
volume measurement       
appears in the display. Afterwards, measure the length,
width and the height, one after
another, in the same manner as
for a length measurement. The
laser beam remains switched on
between all three measurements. 
After taking the third  
measurement, the volume is 
automatically calculated and 
displayed. The last individual
measured value is indicated at
the bottom in the display, while
the final result is shown at 
the top. 
Values above 999990 ft
3
cannot
be displayed;  “Error”and “- - - -”
appear on the display.  In this 
case, switch the unit of measure
to meters (see “Changing the
Unit of Measure”, page 14). 
Area or Volume Rounding of Large Calculations
For values larger than 9999 feet
or meters the rangefinder rounds
the calculated value to the
nearest 10 feet or 10 meters. 
Accuracy in such situations is 
always 99.95% or better.
Minimum Measurement  (see figure F)
The minimum measurement is
used to determine the shortest 
distance from a fixed reference 
point. It is used, as an example,
for determining plumb lines or
horizontal partitions. 
For minimum measurements, 
press button  4 until  “MIN”
appears in the display. 
						

							-16-
To start the measurement, briefly 
push the measuring button 10.
Move the laser back and forth
over the requested target (e.g.,
the room ceiling for determining
the plumb line) in such a manner
that the reference point of the
measurement (e.g., the tip of the
extension pin  15) always 
remains at the same location. 
During the measurement, the 
current length measurement
value is indicated at the bottom of
the display.
The minimum value is indicated
at the top right in the display. It is
always overwritten, when the  
current length measurement 
value is lower than the present
minimal value. 
To end the minimum
measurement, briefly push the 
measuring button  10. Pushing the
measuring button again starts a
new measurement.
Maximum Measurement  (see figure G)
The maximum measurement is
used to determine the greatest
distance from a fixed reference
point. It is used, as an example,
for determining diagonals. For maximum measurements, push button 
4until  “MAX” 
appears in the display. 
To start the measurement, briefly 
push the measuring button  10.
Move the laser back and forth
over the requested target (e.g.,
the room corner for determining
the diagonal) in such a manner
that the reference point of the
measurement (e.g., the tip of the
extension pin  15) always 
remains at the same location.  
During the measurement, the 
current length measurement
value is indicated at the bottom of
the display.The minimum value is
indicated at the top right in the
display. It is always overwritten,
when the current length 
measurement value is larger than
the present maximal value. 
To end the maximum 
measurement, briefly push the 
measuring button  10. Pushing the
measuring button again starts a
new measurement.
Indirect Length Measurement (see figure H)
The indirect length measurement
is used to measure distances 
that cannot be measured directly 
because an obstacle would 
obstruct the laser beam or no  
						

							-17-
target surface is available as a 
reflector. Correct results are
achieved only when the laser
beam and the sought distance
form an exact right angle (90°)
(Pythagorean Theorem). 
In the illustrated example, the 
length Bis to be determined. For
this purpose,  Aand  Cmust be
measured.  Aand  Bmust form a
right angle. 
For indirect length  
measurements, push button  11
until the indicator for indirect
length measurement       appears
in the display.
Measure the distance  Aas for a
length measurement. Pay 
attention that the line segment  A
and the sought distance  Bform a
right angle. Afterwards,  
measure the distance  C. The
laser beam remains switched on 
between both measurements. 
Pay attention that the reference 
point of the measurement (e.g.,
the rear edge of the rangefinder)
is at the exact same location for
both measurements. After completing the second
measurement, the distance 
Bis
calculated automatically.The last
individual measured value is
indicated at the bottom in the
display, while the final result  Bis
indicated at the top in decimal
feet or meters.
Multi-Surface Area
Measurement (see figure I)
The multi-surface area
measurement is used to
determine the sum of several
individual surfaces with a
common length. 
In the example shown, the total 
surface of several walls that have
the same room height  A, but 
different lengths  B, are to 
be determined. 
For multi-surface area
measurements, push button  11
until   appears in the display.
Measure the room height  Aas for a
length measurement. The
measured value is indicated both at
the top and bottom in the display.
The laser remains switched on. 
Afterwards, measure length  B
1 of
the first wall. The surface is  
automatically calculated and 
indicated. The last length 
measurement value is indicated 
						

							-18-
at the bottom in the display, while 
the surface is indicated at the top.
The laser remains switched on. 
Now, measure length B
2 of the
second wall. The individual  
measuring value indicated at the
bottom of the display is added to
length  B
1 and the sum of both
lengths is multiplied with the
stored length  A. The total surface
value is indicated at the top in 
the display.
In this manner, you can measure
any number of further lengthsB X, which are added and 
multiplied with length  A.
The condition for a correct
area/surface calculation is that
the first measured length (in the 
example the room height A) is 
identical for all partial surfaces. 
To restart the multi-surface area
measurement, push button  11twice.
Continuous Measurement  (Tracking)(see figure J)
Use Min. / Max. measurement 
mode for continuous
measurement function (tracking).
The continuous measurement
function (tracking) is used for the
transferring of measurements,
e.g., from construction plans. In
continuous measurement mode, the rangefinder can be moved
relative to the target, whereby the
measured value is updated 
approx.. every 0.5 seconds. As
an example, the user can move
from a wall to the required
distance, while the actual
distance can be read
continuously.
For continuous measurements,
select the Min. or Max.
measuring function. Move the rangefinder until the required
distance value is indicated at the
bottom of the display. 
Pushing the measurement button 
10 interrupts the continuous
measurement.The current
measured value is indicated in
the bottom of display.
Repeated pushing of the
measuring button  10starts the
measuring again. 
The measuring automatically 
switches off after 5 minutes. The
last measured value remains 
indicated in the display. The 
measuring can also be ended by
pushing button  5 or 11, which
changes the measuring mode.
Deleting Measured Values
Pushing on clear button  14
deletes the last individual
measuring value determined in 
						

							-19-
all measuring functions. Pushing 
the button repeatedly deletes the
individual measured values in
reverse order. 
In the multi-surface area 
measurement mode, pushing
button 14the first time deletes
the last individually measured
value; pushing the button a
second time deletes all 
lengths  B
X.
Memory Modes
When switching off the 
Rangefinder, the value in the
memory is retained. 
In the multi-surface area measur- 
ement mode, the total surface
value can be stored; in the
minimum and maximum
measuring mode, the minimum 
and maximum value can be stored 
correspondingly. Storing individual
measuring values within these
functions is not possible.
Storing/Adding Measured  Values
Push the memory add button  3in
order to store the current
measured value – a length, area
or volume value, depending on 
the current measuring function. 
As soon as a value has been
stored,  “M” is indicated in the display and 
“add”is briefly
indicated next to it. 
If a value is already stored in the
memory, the new value is added 
to the memory contents,
however, only if it’s the same type
of measurement. 
As an example, when an area 
value is in the memory and the 
current measured value is a 
volume value, the addition cannot
take place.  “Error”briefly flashes
in the display. 
However, values of the same 
type (e.g. length values) can be 
added no matter if they have 
been measured in feet and
inches, decimal feet or meters.
Subtracting Measured Values
Push the memory subtraction
button  12in order to subtract the
current measured value from the
memory value. As soon as a
value has been subtracted,  “M”
is indicated in the display and is
briefly followed by  “SUB”.
If a value is already stored in the
memory, the new measured
value can be subtracted only 
when the measures of unit  
correspond (see “Storing/Adding
Measured Values”). 
						

							-20-
Displaying the Stored Value 
Push the memory retrieve button 2in order to display the value
stored in the memory.  “M=”is 
indicated in the display. When the
memory contents  “M=”is 
indicated in the display, it can be
doubled by pushing the memory
add button  3or set to zero by
pushing the memory subtract
button  12.
The memorized values can only
be displayed in decimal feet 
or meters. Deleting the Memory
To delete the memory contents,
first push the memory retrieve
button  2, so that  “M=”is 
indicated in the display. Then
push the clear button  14; “M” is
no longer indicated in the display.
The reception lens  22and the
laser beam outlet  21must not be
covered when taking 
a measurement. 
The rangefinder must not be
moved while taking a 
measurement (with the exception
of the continuous measurement
mode). Therefore, whenever
possible, place the rangefinder
against or on the measuring
points. 
Measurement takes place at the 
center of the laser beam, even
when target surfaces are sighted
at an incline. The measuring range depends
upon the light conditions and the
reflection properties of the target 
surface. For improved visibility of
the laser beam when working 
outdoors and when the sunlight  
is intense, use the laser viewing
glasses 
25and the laser target
plate  26, or shade off the
target surface. 
When measuring against 
transparent surfaces (e.g. glass,
water) or reflecting surfaces,
faulty measurements are 
possible. Also, porous or 
structured surfaces, air layers
Operating Instructions