How to Interpret Body Fat
Scale ...........................................
Body Water.........................................
What is Body Water? ..................
Body Fat Monitor
with Wireless Remote Display
(GR101)
How to Interpret Body Water
levels...........................................
Weight Conversion Table........................
Troubleshooting Guide ...........................
Safety and Care .......................................
Warnings ..................................................
Specifications..........................................
About Oregon Scientific .........................
User Manual
Table of Contents
Introduction..............................................
Key Features............................................
Getting Started.........................................
Unpacking the Product.......................
Placing the Units ................................
Quick Start..........................................
Guest Mode........................................
User Profile ..............................................
Setting User Profile ............................
User Profile Measurements................
Memory Mode ....................................
Other Settings..........................................
Alarm..................................................
Low Battery Warning..........................
Reset..................................................
How the Body Fat Monitor Works..........
Body Mass Index................................
Introduction
Thank you for selecting the Oregon
Scientific™ Body Fat Monitor as your
healthcare product of choice. Your GR101
Body Fat Monitor is designed to give you
many years of reliable service. Some of
its features include:
•
Automatic calculation of weight,
body mass index (BMI), body
fat percentage, and body water
percentage/weight
•
•
Wireless Remote Monitor with
8-meter range and a large LCD
display
Patented step-on technology
that automatically turns on the
scale whenever you step onto it
(guest mode)
What is Body Mass Index
(BMI)? .........................................
•
•
Storage of up to 4 different
height and age information for
four different users (guest mode
available)
How to Interpret BMI...................
Body Fat Percentage .........................
What is Body Fat
Percentage?................................
Storage of up to 30 previously
recorded weight, BMI, body fat
percentage, and body water
percentage/weight
How to Interpret Body Fat
Percentage..................................
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Scale Placement
Scale Unit
Remote Unit
For best results, place the Scale on a flat,
even surface. Use the supplied carpet
feet if the Scale is to be placed on carpet.
Leave the Scale on the floor for 5
seconds to allow for self-calibration.
8x AA Batteries
User Manual
4x Carpet Feet
Warranty Card
QUICK START
1. Install the supplied batteries into both
the Scale and Remote Monitor.
PLACING THE UNITS
The Scale and the Remote Monitor
should be within 8 metres of each other,
in order to ensure proper reception.
2. On the Remote Monitor, press and
Remote Monitor Installation
hold SET to select, in order:
Mount or place the Remote Monitor on a
wall or a flat surface as shown below. For
best results, it should be located within 8
meters of the Scale. Avoid obstructions
such as walls or heavy furniture.
a. Weight unit:
lb (pound), kg (kilogram), or st-lb
(stone)
b. 12- or 24-hour format
c. Current hour
d. Current minute
e. Current year
�
f. Date/Month or Month/Date
format
�
g. Current Month
h. Current Date
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Press ▲ / ▼ to adjust the
values of each setting. Press SET to
confirm.
Press ▲ / ▼ to adjust the
values of each setting. Press SET to
confirm.
4. When completed, your Body Fat and
Body Water measurements will be
alternately displayed on the Remote
Monitor.
GUEST MODE
The Guest Mode is for users without a
User Profile set up. You can measure
your weight and BMI in this mode.
User Profile
1. Press Guest/Weight. Once the
SETTING USER PROFILE
Reception icon
blinks and the
Scale’s LED Indicator is blank, the
Remote Monitor is ready to receive
With this product, you can set and store
the age, gender, and height for up to four
people (User 1 to 4) who regularly use the
Body Fat Monitor.
If the batteries are low, you cannot
store the height and age to memory.
1. On the Remote Monitor, each user is
represented by one of the four User
Switches. Press 1, 2, 3, or 4 to select
a user.
2. Follow Steps 3 and 4 of the USER
PROFILE MEASUREMENTS
section.
Make sure not to store your
height and birth date over someone
else’s existing profile.
You can choose to skip the
next set of instructions if you do not
want to measure your Body Fat and
Body Water levels.
3. Once the green LED stops blinking,
the Remote Monitor will prompt you
for:
a. Gender:
b. Birth Month
c. Birth Year
d. Height:
Male /
Female
2. Once the green LED stops blinking,
the Remote Monitor will prompt you
for:
icon appears
a. Gender:
Male /
Female
•
In centimetre (cm) if kg
(kilogram) weight unit was
selected.
In feet and inches if lb
(pound) or st-lb (stone)
weight unit was selected.
b. Birth Month
c. Birth Year
•
icon appears
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d. Height:
4. Your weight and BMI will first appear
on the Remote Monitor. Remain still,
and the green LED Indicator will blink
more rapidly to record your Body Fat
and Body Water measurements.
•
In centimetre (cm) if kg
(kilogram) weight unit was
selected.
•
In feet and inches if lb
(pound) or st-lb (stone)
weight unit was selected.
Press ▲ / ▼ to adjust the
values of each setting. Press SET to
confirm.
USER PROFILE MEASUREMENTS
Once you set a User Profile, the GR101
can automatically calculate the body
mass index (BMI), Body Fat Percentage,
and Body Water measurements.
If “OL” is shown on the
Remote Monitor, the maximum
loading capacity for the Scale has
been exceeded. Step off the Scale
and try again with less than 150kg of
weight.
1. Press the User Switch (1 to 4) that
has your User Profile configured.
If you wait for too long
before stepping on the Scale, your
measurements will not be taken
correctly. Step off the Scale and
follow these instructions again.
2. Your profile will appear on-screen.
Once the Reception icon
blinks
and the Scale’s LED Indicator is
blank, the Remote Monitor is ready to
receive your weight information.
5. Once the green LED stops blinking,
your Body Fat and Body Water
measurements will be alternately
displayed on the Remote Monitor.
Weight, Body Fat and BMI Display:
3. Step onto the Scale. Stand still while
the measurement is being taken.
The Scale’s green LCD Indicator will
blink.
It is recommended that you
step onto the scale with your bare
feet. The electric signal sent from the
scale cannot give readings if socks or
shoes are worn.
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Body Water Weight and Percentage
Display:
When turned on, the
appear.
icon will
4. Press
anytime to return to
normal clock display.
Snooze
When the alarm rings:
•
•
Press
snooze off.
to turn alarm /
MEMORY MODE
The GR101 can store up to 30 previous
measurements. To display previous
measurements taken by a user with a
profile:
Press any other buttons to
temporarily disable the alarm
for 8 minutes (
icon will appear).
1. Press the User Switch (1 to 4)
corresponding to your User Profile.
LOW BATTERY WARNING
Scale
2. Press ▲ / ▼ to cycle
through your previous
measurements. The
The LED Indicator also functions as a
battery level indicator. When you step
on the scale, the following LED colour
indicates:
MEM box will indicate
the current memorized
measurements that
you are viewing.
•
•
•
Green - Adequate battery level
Yellow - Low battery level
Red - Battery is depleted
Other Settings
Remote Monitor
ALARM
The LCD Display can show Low Battery
Warning symbols for both the Scale and
the Remote Monitor:
The Remote Monitor also has alarm
function with snooze.
Set Alarm
The Remote Monitor’s
batteries are low.
1. Press
to enter Alarm Mode.
2. To adjust the alarm time:
a. Press and hold SET.
The Scale’s batteries are
low.
b. Press ▲ / ▼ to adjust the hour
and minute. Press SET to
confirm.
3. To turn alarm on/off, press ▲ / ▼.
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RESET
Neither the BMI nor the Body Fat
Percentage, taken individually, gives
the complete picture of your health. For
example, bodybuilders often have high
BMI (considered obese) but low Body
Fat Percentage (considered healthy).
The BMI, in this case, does not take
into account that the extra weight is
from muscles and water but not fat.
Conversely, a very thin person may have
low Body Fat Percentage (considered
healthy) but also lower-than-accepted
BMI (considered unhealthy). This means
that the person is still at risk health-wise,
despite the low Body Fat Percentage.
The RESET hole is used whenever the
product is not performing as expected
(such as when the Remote Monitor
cannot detect the Scale) or when new
batteries are inserted. This will return the
settings to default values.
Both the Scale
and Remote
Monitor have
RESET holes
located inside
the Battery
Compartment.
Use a blunt
stylus such as
a paper clip to
press into the
hole.
Consult your physician before you
begin a new diet or exercise program.
BODY MASS INDEX
What is Body Mass Index (BMI)?
The stored time information will be
erased when the RESET hole is pressed
on the Remote Monitor. All other values,
such as date and month, will not be
affected.
Body mass index (BMI) is a widely used
international standard that measures
height to weight ratio to determine
obesity. BMI is expressed by the following
terms:
How the Body Fat Monitor
Works
BMI = Body weight (kg)
[Body height (m)]2
When you step on the scale, a weight
measurement is taken. The GR101 can
also help you to automatically calculate
your Body mass index (BMI) and Body
Fat Percentage, two internationally
accepted indicators of health and obesity
levels.
The BMI is only a general indicator of
your health level. As such, accuracies
may vary depending on your body type
and composition. Consult your physician
to find out more about your current health.
Weight alone is not a good enough
indicator of health because it does not
differentiate between muscles, tissues,
bones, and fat. As such, when a person
loses weight, it may be a result of the
loss of muscles or body water but not fat.
In order to better understand your body
composition and current health level, both
the BMI and Body Fat Percentage should
be observed.
Refer to WEIGHT CONVERSION
TABLE to convert between weight units.
How to Interpret BMI
Use the resulting BMI value with the chart
below to determine your current level of
health:
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BMI should not be used as a
guideline for health risks for the following
groups:
Asians have a separate BMI range
due to their different body composition.
Health
BMI
Description
Indication Range
Group
Children
and
Reason
BMI ranges are only
based on adult heights.
Less
Your body
Under-
weight
than
20.0
weight is
currently lower
than average.
Work toward
healthy, regular
food intake
and exercise
routine to
build up your
health to
teenagers
Athletes
and body-
builders
BMI does not
differentiate between
fat and muscle, thus
making it inaccurate
for persons with high
muscle volumes.
This group generates
naturally high fat
*Asian
BMI:
Less
than
18.5
Pregnant
or nursing
women
recommended
reserves as part of the
pregnancy.
levels.
Your health
is at the
20.0
– 25.0
Recom-
mended
References:
recommended
level. Maintain
a balanced diet
and exercise
to keep your
current level of
health.
1. Jequier, E. (1987)
Energy, obesity, and
body weight standards.
*Asian
BMI:
18.5
2. American Journal of Clinical
Nutrition, 45, 1035-1047
– 23.0
3. Japan Society for the Study of
Obesity
25.1
– 29.9
Your body
Over-
weight
weight may be
above normal.
Increase your
exercise and
work out a diet
plan to lower
your risk for
serious illness.
4. The Weight Loss Research
Center
5. myDr. (www.mydr.com.au)
*Asian
BMI:
23.0
BODY FAT PERCENTAGE
– 29.9
What is Body Fat Percentage?
30.0 or At this level,
greater you may be
at risk for
Obese
Body Fat Percentage is a measurement
of the total percentage of fat in your body.
For example, if you weigh 70 kg and your
Body Fat Percentage is 15%, then you
are retaining 10.5 kg of fat. The remaining
weight is composed of muscles, bones,
tissues, and water weight.
heart disease,
high blood
pressure, and
other illnesses.
Consult with
your doctor
to develop a
*Asian
BMI:
30.0 or
greater
proper health
and fitness
plan.
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Among overweight people, it is excess fat
and not weight alone that carries health
risks. Since the body comprises elements
How to Interpret Body Fat Percentage
Use the resulting Body Fat Percentage
of varying densities, weight or BMI cannot value with the chart below to determine
fully measure exactly how much excess
fat a person carries. For example, two
people of the same weight and BMI may
have big differences in body composition.
One may carry excess fat while the other
carry acceptable level of fat needed to
regulate the body. As such, a Body Fat
Percentage measurement is an effective
assessment of your current health level.
your current level of health:
ADULT MEN
Body
Fat
Level
Age Group in Years
< 30
30-
39
>
40-
49
>
> 49
Very
High
High
>
>
28%
22 -
28%
11 -
21%
6 -
29% 30% 31%
23 - 24 - 25 -
29% 30% 31%
12 - 13 - 14 -
22% 23% 24%
7 - 8 - 9 -
Normal
Low
Essential fat is necessary for bodily
functions, since it helps to maintain body
temperature an insulate organs and
tissues.
10%
<6%
11% 12% 13%
<7% <8% <9%
Very
Low
How Body Fat is Measured
ADULT WOMEN
The GR101 uses the
method of Bioelectrical
Impedance Analysis
(BIA) to measure body
fat. This method is
completely safe, and is
widely used in the
medical field. The
principle of BIA is as
follows: GR101 sends
a low, harmless
electrical signal through
your body that flows
freely through fluids but
not fat. As such, the
machine measures the
opposition to the signal
Body
Fat
Level
Age Group in Years
< 30
30-
39
>
40-
49
>
> 49
Very
High
High
>
>
32%
26 -
32%
15 -
25%
12 -
14%
<
33% 34% 35%
27 - 28 - 29 -
33% 34% 35%
16 - 17 - 18 -
26% 27% 28%
13 - 14 - 15 -
15% 16% 17%
Normal
Low
Very
Low
<
<
<
12%
13% 14% 15%
BIA
Foot-to-Foot
Measuring
Diagram
and uses this to
calculate the body fat
percentage (along with
the person’s age,
height, and weight).
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Body Fat
Standard
Reason
Very High Percent fat at this level
indicates the person
is seriously obese
to a degree that this
can have adverse
Very Low
Low
Optimal
High
Very High
health consequences.
Maintaining this level of
fat for a long period of
time places the person at
risk of hypertension, heart
disease, and diabetes.
Consult your doctor on a
long-term weight loss and
exercise program.
Reference:
1. Robert M. Ross, Andrew S.
Jackson: Exercise concepts,
calculations, and computer
applications.
High
It is likely that the
person is obese. Careful
implementation and
monitoring of diet and
exercise is recommended.
This is the ideal level of
body fat for the average
person.
Carmel, Ind.: Benchmark Press,
1990.
Optimal
Low
How Body Fat Percentage Fluctuates
For athletes, this is a
desirable level of body
fat. For regular persons,
a regular diet should be
considered to improve
the balance of body
composition.
It is recommended that you choose a
time slot to measure body fat and then
monitor it regularly at the same condition.
Ideally, body hydration level is most stable
during late afternoon, right before dinner.
Please note the many factors may alter
an individual’s body fat reading, including
alcohol consumption, taking a bath or
exercising, waking up, eating, fever and
illnesses.
Very Low The level of body fat is too
low. Consult a physician
for advice.
How to Interpret Body Fat Level
Indication
BODY WATER
What is Body Water?
In addition to displaying your Body Fat
Percentage, the GR101 provides a Body
Fat Level Indication on the LCD screen
to help you immediately gauge your level
of body fat without referring to the chart
above.
Total Body Water is the amount of water
retained in the body, and comprises
between 50%-70% of the total body
weight. Generally, men tend to have
higher water weight than woman due to a
greater amount of muscle. Athletes also
tend to have 5-8% more Total Body Water
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due to more muscle mass. Staying within
the proper Body Water range is very
important in order to stay healthy. It plays
an important role in the regulation of body
temperature, removal of waste from the
body, cell metabolism, and keeping skin
and tissues moist.
Very Low
Low
Optimal
High
Very High
How to Interpret Body Water Levels
Use the resulting Body Water Percentage
value with the chart below to determine
your current level of body water:
Body Water
Level
Male
Female
Weight Conversion Table
High
Slightly High
Normal
>70%
65 - 70%
53 - 65%
48 - 53%
<48%
>65%
60 - 65%
50 - 60%
48 - 50%
<48%
Unit
Name
Conversion
kg
Metric
kilogram
1 kg = 2.20 lb
1 kg = 0.16 st-lb
1 lb = 0.45 kg
Slightly Low
Low
lb
Imperial
pound
1 lb = 0.07 st-lb
1 stone = 14.0 lb
1 stone = 6.35 kg
st-lb British
stone
Body
Water
Level
High
Advice
pound
Consult your physician for
advice.
Troubleshooting Guide
Slightly
High
Observe your nromal
water intake.
This section includes a list of frequently
asked questions for problems you may
encounter with your Body Fat Monitor. If
the product is not operating as you think
it should, check here before arranging for
servicing.
Normal
This is the ideal level of
body water.
Slightly
Low
Drink more water to keep
proper hydration.
Low
Consult your physician for
advice.
Symptom
Check
The
Remedy
The
Replace
Remote
Monitor’s
display
is dim or
blank
batteries
are low or
exhausted p.3).
with new
batteries (→
The GR101 provides a Body Water Level
Indication on the LCD screen to help you
immediately gauge your level of body
water without referring to the chart above.
Batteries
are
inserted
Insert the
batteries
correctly (→
incorrectly p.3).
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Symptom
Check
The
weight
on the
scale is
unevenly
Remedy
Symptom
Check
Remedy
The
maximum
weight
is 150kg
(330 lb /
Scale
shows
when
The scale
is over-
loaded
Make sure
to remain
still and
place the
scale on a
shown
on the
display
weighing
23st - 8lb).
Remove the
weight from
the scale.
distributed flat surface.
or
Use the
unstable
carpet feet if
the ground
is carpeted
or uneven.
The
measure-
ment is
The scale
is uneven
or on
Use the
supplied
carpet feet
or place the
scale on a
flat, even,
and hard
surface.
You have
stepped
on the
scale too
early
For guest
user, wait
until the
inaccurate carpet
shown
on the
display
LCD is
blank. For
user with
saved
Socks or
Remove
settings,
shoes are
worn
your socks,
shoes, and
other heavy
accessories
before using
the scale.
wait until
the display
shows the
weight as
"0.0" before
stepping on.
The
entered
gender,
birth date, the correct
or height
is wrong
Re-enter
your user
settings with
The Scale Lift the
is not
properly
calibrated
Scale up,
shown
on the
display
then place it
back on the
floor to allow
for self-
values.
Measure-
ments
vary after
a short
Fluctuations
in body fat
during the
day are
calibration.
period
normal.
Weight
does not
display
Retry
Wait
measuring until the
Reception
icon
appears
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Do not immerse the product
in water or place the scale on
a wet surface.
Safety and Care
CARING FOR YOUR BODY FAT
MONITOR
Keep the product away
from heat sources such
as radiators, stoves, and
heaters.
To ensure you receive the maximum
benefit from using this product, please
observe the following guidelines.
Do not use the Scale on an
uneven surface.
Clean with a damp cloth. Do
not use abrasive or corrosive
cleaning agents.
Use carpet feet (supplied)
if you place the Scale on a
carpet.
Do not attempt to repair the
product yourself. Contact
the dealer or a qualified
repairman if the product
requires servicing.
Warnings
This product has been engineered and
manufactured to the highest safety
standards. The product is designed to
provide you with many years of reliable
service, provided that it is properly used
and cared for. To ensure your safety and
prolong the life of the product, please
observe the following precautions.
Do not store the Scale in an
upright position.
Do not place objects on the
Scale or Remote Monitor.
Do not expose the product
to excessive force, dust,
temperature fluctuations, or
humidity.
ABOUT THE DEVICE
WARNING: It is not
recommended for persons
with implanted medical
equipment such as
pacemakers or pregnant
women to use the GR101.
Allow the Scale to settle for
at least 30 minutes whenever
there is a sudden change in
ambient environment (e.g.,
from an outdoor area to an
air conditioned room).
!
•
The GR101 is intended for
home use only, not for hospital
diagnosis purposes.
SAFETY PRECAUTIONS
•
The BMI, Body Fat Percentage,
and Body Water measurements
done with the GR101
Please observe the following safety
precautions when setting up and using
your Body Fat Monitor.
should only be treated as an
approximate indication of your
health level. Consult with your
physician for a full and thorough
evaluation.
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•
Body Fat Percentage and Body
Mass Index measurements are
less accurate for professional
athletes, bodybuilders, children,
teenagers, and persons over the
age of 65 due to the difference
in their body compositions.
However, this device can still
help individuals in the groups
above to track their body fat
trends over time.
Battery
4 x LR6 / AA / UM-3
1.5V
Power Save
Auto-off after 5 - 10
seconds
REMOTE MONITOR
Dimension
Weight
186(W) x 120(H) x
33(T)mm
380g (excluding
batteries)
GENERAL WARNINGS
Battery
4xLR6 / AA / UM-3 1.5V
batteries
•
Read and observe all warnings
and instructions. Contents of
this user manual are subject to
change without further notice.
Figures and display examples
are for reference only, and may
slightly differ from the actual
product.
WEIGHT MEASUREMENT
Mechanism
Unit
4 load cell strain
gauges
kilogram (kg) /
pounds (lb) / stone
pounds (st-lb)
150kg / 330 lb /
23st-8lb
•
•
Batteries - Reversing the
battery polarity may damage the
product. Remove the batteries
if the Body Fat Monitor will be in
storage for an extended period
of time.
Maximum
Graduation
0.1 kg / 0.2 lb
Liquids, moisture, and foreign
objects - Never insert foreign
objects in or spill liquids on
the product, as this can cause
electric shock and damage to
the unit. Do not immerse this
product in water.
BMI MEASUREMENT
Range
1.8 - 50 kg/m2
BODYFAT MEASUREMENT
Mechanism
Range
6 conductive pads
5 - 75%
Specifications
Resolution
Gender
Age
0.1%
Male / Female
7 to 99 years old
SCALE UNIT
Dimension
315(W) x 340(D) x
50(H)mm
Weight
1.8 kg (excluding
batteries)
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HEIGHT
Unit
centimetres (cm) /
feet (‘) and inches (“)
80.0 - 230.0 cm /
2’ 7.5” - 7’ 6.6”
Range
Resolution
Gender
Age
0.1cm or 0.1”
Male / Female
7 to 99 years old
TEMPERATURE
Operation
5° C - 45° C /
41° F - 113° F
at ≤85% relative
humidity
Storage
-20° C - 60° C /
-4° F - 140° F
at ≤85% relative
humidity
About Oregon Scientific
Visit our website (www.oregonscientific.
com) to learn more about your body fat
monitor and other Oregon Scientific™
products such as digital cameras,
telephones, alarm clocks, and weather
stations. The website also includes
contact information for our customer
service department, in case you need to
reach us.
Help us protect the environment.
Recycle the packaging, batteries, and
product after you no longer need them.
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