GoWISE USA GW22041 User manual

Instruction Manual
DIGITAL BODY FAT SCALE
VERSION 1.0
GW22041/GW22042
WWW.GOWISEUSA.COM

2
Table of Contents
Device Components ...............................3
Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Safety and Usage Information .......................6
Safety Information ................................7
GoWISE Body fat Scale & You........................8
Setting up your scale ..............................13
Setting up your profile .............................14
A) Manually selecting profile ..................16
B) Automatic Profile Measure..................18
Warranty.........................................21
Appendix
* FCC User Guide Information .................22
* EMC Guidance.............................23
Trouble Shooting..................................24
Notes ...........................................25

3
Device Components
List
1. Body Fat Analyzer GBF-943-A
2. 2xCR2032 Lithium Batteries (3V per each)
3. User Manual
LCD Display
Battery Compartment
UNIT Button
Electrodes
Up Key
Set Key
Down Key
Electrodes

4
Product Speccations
• Dimension: Scale: 310x310x20.4mm (Approximately)
• Capacity: 180kg / 397lb / 28st: 5lb
• Weight Unit: kg / st: lb / lb
• Minimal Weight: 5kg / 11 lb
• Function Key: , SET, , UNIT
• Display: Positive LCD
• Battery: 2xCR2032, lithium battery
• Age Range: 10 - 80
• Accuracy: 50kg: ±0.3kg; 150kg: ±0.5kg; 100kg: ±0.4kg;
180kg: ±0.7kg;
• Stature Range: 10 - 220 cm / 3ft 3.5 inch/ 7ft 2.5 inch
• User Identification: Identify user automatically
according to the last measuring weight.
• Target Weight Tracking: Compare the current weight
with the target weight you set.
• Measures body fat, water, muscle, bone and calories
• Fat Grade Indication feature
• Auto on or press UNIT or touch SET to switch on
• Auto Off function
• Accessories: 2xCR2032 batteries, User Manual
• Degree of protection: Type BF applied part
• Working Temperature: 5 °C ~ 40℃ °C / 32 °F ~ 104 °F
• Working Humidity: 90% RH
• Storage Temperature: -20 °C ~ 60℃ °C / -4 °F ~ 140 °F
• Protection Against Ingress of Water: IP21
About the Accuracy of This Product
• This product passes strict inspection before delivery, and therefore its accuracy
is guaranteed by the manufacturer. Please refer to the above table for the
descriptions of accuracy.
• This product is specially designed for body fat analysis as well as a weight
measurement. It should NOT be used by anyone during the process of the
transaction for verification of goods’ weight.

5
Product Speccations (Cont.)
LCD Display
Body Fat Level: Low
Body Fat Level: Normal
Body Fat Level: High
Body Fat Level: Very High
Basal Metabolic Rate
Target Weight
Body Fat Analysis Result
Total Body Water Analysis Result
Muscle Mass Analysis Result
Bone Mass Analysis Result
Stone
Pound
Kilogram
Percentage
Foot
Centimeter
Age
Male
Female
User ID (Range from P1 to P10)
Difference compare with target
weight
More than target weight
Less than target weight
Calorie
Male Athlete
Female Athlete

6
Safety and Usage Information
The warning signs and symbols are essential to ensure
your correct and safe use of this product and protect
you and others from injury. Please kindly find the
meanings of the warning signs and symbols, which you
may encounter in the label and user manual, as follows:
Symbol for “THE OPERATION
GUIDE MUST BE READ” Symbol for “MANUFACTURER”
Symbol for “ENVIRONMENT
PROTECTION – Waste electrical
products should not be disposed of with
household waste. Please recycle where
facilities exist. Check with your local
authority or retailer for recycling advice”
Symbol for “TYPE BF APPLIED
PARTS”
Symbol for “SERIAL NUMBER”
Symbol for “DIRECT CURRENT”
Symbol for “MANUFACTURE
DATE”
CAUTION
GoWISE USA Body Fat Scale GW22041/GW22042 offers you a seamless way to manage your health.
Please be aware that this device is designed for adults’ self-measuring and self-monitoring body fat level.
Any information provided by this device is in no way meant to treat, cure or prevent any disease or ill-
ness from happening. This device should not be used by anyone who is acutely or chronically ill, suffering
from a disease or taking medications that affect your water levels. The accuracy of readings for these
patients has not been verified. Specific medical advice should be obtained from a physician.
Before diet and exercise, you must first find a professional medical guide.
Kindly note that the use of accessories, transducers or cables other than those specified, with the
exception of transducers and cables sold by the manufacturer as replacement parts for internal
components may result in increased EMISSIONS or decreased IMMUNITY of the device.
Portable and mobile RF communications equipment can affect the measuring accuracy of the device.
Be aware that misuse of electrical equipment can cause electric shock, burns, fire and other hazards.
Please do not use the device in a flammable gas environment.
Warning that the analyzer should not be used adjacent to or stacked with other equipment.
Manufacturer will make available on request circuit diagrams, component parts list,etc.
WARNING: No modifications of this equipment is allowed.
During using the analyzer, the patient will contact with the surface and the electrode of the analyzer.
The surface and the electrode of the analyzer is type BF Applied part.
The device doesn’t need to be calibrated in five years lifetime.
Do not touch the output of batteries when using the analyzer.
The patient is an intended operator. The patient can perform all the operations in the manual, such as
measurement, changing batteries.

7
Saftey Information
The GoWISE USA Digital Body Fat Scale GW22041,
GW22042 offers a seamless way to manage your health.
Please be aware that this device is designed for healthy
individuals to self-measure and self-monitor body com-
positions. This device is a personal monitor and should
be used in a consistent manner for the most accurate
measurements. While measurements of this scale may
differ from other measurement devices (hydro-densi-
tometry or handheld calipers), the changes in body fat
percentage shown by this product are reflected accu-
rately. Any information provided by this device is in
no way meant to treat, cure or prevent any disease or
illness.
If in doubt, please contact your physician.
This Device is NOT recommended for use by the following:
• Individuals who are, or may be pregnant.
• Individuals who are connected to a wearable or im-
plantable electronic device or instrument, such as a
pacemaker or defibrillator.
• Individuals who are acutely or chronically ill (suffering
from a disease or taking medication can affect water
levels).
It is suggested that you contact your physician before use.
Please use this device according to the manual. Any mis-
use can cause electric shock, burns, fire, other unexpected
hazards and injuries, and void warranty. This scale is FDA
approved and ETL certified.

8
GoWISE USA Body Fat Scale and Your Body
How does the GoWISE USA Body Fat Scale Work?
This scale uses Bioelectric Impedance Analysis (BIA)
technology which passes a small electrical current
through the body to estimate the body fat mass, total
body water, muscle mass, and bone mass. This electrical
current is small, and it cannot be felt. Contact is made
with the body through the steel pads on the platform of
the scale.
Body Fat - What does it mean?
The human body is made up of, among other things, a
percentage of fat. Body fat is an important component
of a healthy and functioning body because it protects
vital organs, helps regulate body temperature, stores
vitamins, and helps the body sustain itself when food
is scarce. However, too much or too little body fat can
cause damage to your health. Therefore, it is important
to monitor your body fat percentage.
Ideal body fat content is NOT the same for all people.
Some variables such as age, sex, and heredity can deter-
mine the right body fat percentage for you.
Consult your physician to determine what is ideal for
you.
See table on next page

9
GoWISE USA Body Fat Scale and Your Body (Cont.)
10~12 <12 12~22 22~30 >30 <8 8~18 18~24 >24
13~18 <15 15~25 25~33 >33 <8 8~18 18~24 >24
19~30 <20 20~29 29~36 >36 <8 8~18 18~24 >24
31~40 <22 22~31 31~38 >38 <11 11~20 20~26 >26
41~50 <24 24~33 33~40 >40 <13 13~22 22~28 >28
51~60 <26 26~35 35~42 >42 <15 15~24 24~30 >30
60+ <28 28~37 37~47 >47 <17 17~25 26~34 >34
Age Under
Weight
Normal
Range
Over-
weight Obese Under Weight
Normal
Range
Over-
weight Obese
Female Male
Body Fat Analysis (%): 5~60%
10~12 >60 >64
13~18 >58.5 >63.5
19~30 >56 >62.5
31~40 >53 >61
41~50 >52 >60
51~60 >51 >59
60+ >50 >58
Female Male
Normal Normal
Age
The Body Water Ratio (%): 43~70%
10~99 >34 >40
Female Male
Normal Normal
Age
The Body Muscle Ratio (%): 0~40%
Body Bone Ratio (Kg): 0~10% Kg
Weight <45Kg 45~60Kg >60Kg <60Kg 60~75Kg >75Kg
Bone 1.8Kg 2.2Kg 2.5Kg 2.5Kg 2.9Kg 3.2Kg
Female Male
10~12 <12 12~22 22~30 >30 <8 8~18 18~24 >24
13~18 <15 15~25 25~33 >33 <8 8~18 18~24 >24
19~30 <20 20~29 29~36 >36 <8 8~18 18~24 >24
31~40 <22 22~31 31~38 >38 <11 11~20 20~26 >26
41~50 <24 24~33 33~40 >40 <13 13~22 22~28 >28
51~60 <26 26~35 35~42 >42 <15 15~24 24~30 >30
60+ <28 28~37 37~47 >47 <17 17~25 26~34 >34
Age Under
Weight
Normal
Range
Over-
weight Obese Under Weight
Normal
Range
Over-
weight Obese
Female Male
Body Fat Analysis (%): 5~60%
10~12 >60 >64
13~18 >58.5 >63.5
19~30 >56 >62.5
31~40 >53 >61
41~50 >52 >60
51~60 >51 >59
60+ >50 >58
Female Male
Normal Normal
Age
The Body Water Ratio (%): 20~80%
10~99 >34 >40
Female Male
Normal Normal
Age
The Body Muscle Ratio (%): 0~70%
Body Bone Ratio (Kg): 4~5% Kg
Weight <45Kg 45~60Kg >60Kg <60Kg 60~75Kg >75Kg
Bone 1.8Kg 2.2Kg 2.5Kg 2.5Kg 2.9Kg 3.2Kg
Female Male
Rating
low
Normal
Moderately High
High
Age
20-29
<13 <14 <16 <17 <18
13-20 14-21 16-23 17-24 18-25
20.1-23 21.1-24 23.1-26 24.1-27 25.1-28
>23 >24 >26 >27 >28
30-39 40-49 50-59 60+
Standard for Men
Rating
low
Normal
Moderately High
High
Age
20-29
<19 <20 <21 <22 <23
19-28 20-29 21-30 22-31 23-32
28.1-31 29.1-32 30.1-33 31.1-34 32.1-35
>31 >32 >33 >34 >35
30-39 40-49 50-59 60+
Standard for Women

10
GoWISE USA Body Fat Scale and Your Body (Cont.)
Important Note:
Body Fat percentage will vary with the amount of water
in the body and can be affected by dehydration or over-
hydration. Both can occur with alcohol consumption,
menstruation, illness, intense exercise, etc. Also, body
fat percentage gives a better measurement of fitness
than weight loss alone. The composition of your weight
loss could mean you are losing muscle mass rather that
fat. Even if you have a “normal weight”, your body fat
percentage can read high.
Body Water - Why measure it?
Body water is the single most important component of
body weight. It represents over half of your total weight
and almost 2/3 of your lean body mass (predominantly
muscle).
Water performs some important roles in the body. All
the cells in the body (consisting of skin, glands, muscle,
and brain, to name a few), can only function if they have
enough water. Water also plays a vital part in regulating
the body’s temperature balance, particularly through
perspiration. The combination of your weight and fat
measurement could appear to be “normal,” but your
body hydration level could be insufficient for healthy
living.
Your level of hydration (water content) varies throughout
the day and affects your impedance measurement
on this scale. Therefore, if you are dehydrated, there
is a greater chance for fluctuation in the body fat
percentage displayed by this scale compared to when
you are fully hydrated.
(Chart on the next page)

11
A guide to normal healthy range of total body water (TBW) percentage:
GoWISE USA Body Fat Scale and Your Body (Cont.)
FOR MEN:
If Body Fat (BF%) Optimal Total Body
range is: Water (TBW) is:
FOR WOMEN:
If Body Fat (BF%) Optimal Total Body
range is: Water (TBW) is:
4% - 14% 63% - 70%
15% - 21% 57% - 63%
22% - 24% 55% - 57%
25% and over 37% - 55%
4% - 20% 58% - 70%
21% - 29% 52% - 58%
30% - 32% 49% - 52%
33% and over 37% - 49%
Muscle Mass – Why should I know it?
According to the American College of Sports Medicine
(ACSM), lean muscle mass may decrease by almost 50%
between the ages of 20 and 90. An inactive/sedentary
lifestyle can cause loss of lean body mass while body fat
increases. It is also important to know your muscle mass
percentage during weight reduction. At rest, the body
burns approximately 110 additional calories for each
kilo of muscle gained. Benefits of gaining muscle mass
include:
• Reversing the decline in strength and bone density
• Maintenance of exible joints
• Guide weight reduction when combined with a healthy diet
Important Note: Proper calorie intake and nutrition are important to maintain a healthy body.
Consult a physician before undertaking any exercise or diet program.
Muscle Mass Percentage
(Source: International Commission on Radiological Protection,1975)
Men
Women
Approximately 40% of total body weight
Approximately 30% of total body weight

12
GoWISE USA Body Fat Scale and Your Body (Cont.)
Bone Mass – Why measure it?
Regular exercise and a balanced diet can help maintain
healthy bones. Calcium and vitamin D (found in dairy
products, green leafy vegetables, and fish) contribute to
healthy bones. Like a muscle, bone is a living tissue that
can respond to exercise by becoming stronger. For most
people, bone mass peaks in their thirties. Bone loss
occurs when exercise is not done regularly.
Less than 110lb 110 lb - 165 lb 165 lb and up
4.3 lb 5.3 lb 6.5 lb
Weight (lb)
Less than 143lb 143 lb - 209 lb 209 lb and up
5.9 lb 7.3 lb 8.1 lb
Weight (lb)
Women: Average of estimated bone mass is between 4 to 5%
Men: Average of estimated bone mass is between 4 to 5%
The bone mass readings given by this product are an
estimation of the amount of bone in your body.
Important Note: Individuals with osteoporosis or low
bone densities may not get accurate results. If you have
any concerns regarding your bones, please consult your
physician.

13
Setting Up your Scale
1. Open the battery compartment found on the back of
the scale.
2. Install the batteries and ensure that the +/- terminals
are correct
3. Turn your scale over, the LCD display should
show the picture below, then close the battery
compartment.
4. Wait for 0.0 to show on the LCD.
1. Select the unit of measurement by pressing the
button labeled as “UNIT” found on the bottom of the
scale.
NOTE: The scale will
automatically turn off
after 10 seconds of
inactivity.

14
Setting Up your Prole
1. Place the scale on a flat hard ground. DO NOT PLACE
THE SCALE ON AN UNEVEN OR CARPETED SURFACE.
THE SCALE WILL NOT BE ACCURATE.
2. SET THE USER NUMBER Press “SET” to put the scale
into Setting Mode. The user number will flash on the
bottom left corner. Press the “ ” or “ ” to select a
user number. Press “SET” to confirm user number.
3. SET GENDER The gender icon will flash. Press “ ” or
“ ” to select a gender. Press “SET” to confirm.
4. SET THE HEIGHT The height will flash on the LCD.
Press “ ” or “ ” to set the height in feet & inches.
Press “SET” to confirm.

15
Setting Up your Prole (Cont.)
5. SET THE AGE Press “ ” or “ ” to set age. Press
“SET” to confirm.
6. SET A TARGET WEIGHT Press “ ” or “ ” to set a
target weight. Press “SET” to confirm.
7. Once you have set up your profile, the scale will
revert to zero. Immediately step on the scale.
8. The scale will measure your weight then the LCD will
show moving “o”. After a few seconds, the scale will
show your body water, fat, bone mass, and BMR.
NOTE: Do not step off the scale until
you see the initial measurements. If you
step off the scale too early, you may
have to set your prole up again.

16
Manually Selecting a Prole
1. Place the scale on flat hard ground and press “SET”
to turn it on.
2. Press “ ” or “ ”to find your user number. Press
“SET” to confirm the user number.
3. Wait until the LCD displays zero then immediately
step on the platform with bare feet.
4. Stand still and the scale will measure your weight
first.
5. Once the weight is locked in, the scale will start
measuring and the LCD will show moving “o”.

17
6. The results will show twice as well as the user’s
profile information.
Manually Selecting a Prole (Cont.)

18
Automatic Prole Measure
After going through steps 1-8 under “Setting up your
Profile”, your profile should be saved under a user
number.
1. Stand on the platform with bare feet.
NOTE: The scale will turn off after 20 seconds of inactivity.
2. Stand still and the scale will start measuring. You will see
a moving “o” across the LCD. The scale will identify users
with a +/- 5 lbs difference with the current weight. If
there is just one user, skip to step 4.
3. If two users are identified, press “ ” or “ ” to select
the correct user number. If there are more than two
users, the profiles will alternate on the LCD. Press
“ ” to select the left user and “ ” to select the right
user.
4. After selecting a profile, the scale will show the
measurements.

19
Reviewing The Last Records
1. Press “SET” to turn the scale on.
2. Wait until the LCD displays zero then press “ ” or
“ ” and select which user number you would like to
view. The results will show three times.
If there are no pieces of measuring results stored under a specific User ID, “ ” will
be displayed instead.

20
Indication Message
LOW BATTERY INDICATION. When “Lo” is shown, the
scale will turn off after a few seconds and please change
the batteries.
OVERLOAD INDICATION. Remove the weight on the scale
to protect the load cells.
MEASURING ERROR INDICATION. The weight data will
show only and the scale will turn off after a few seconds.
Make sure that you are standing on the scale bare foot.
FAILED IDENTITY INDICATION. The weight is shown only
once and the scale turns off after a few seconds. Select
your user number and try measuring again
Reminder
a.) Please do not put the scale on carpet.
b.) If the scale is not used for an extended period, please remove
the batteries.
c.) Clean the scale with a slightly damp cloth, DO NOT immerse the
scale in water or use chemical/abrasive cleaning agents.
d.) To ensure the most accurate weighing, when you move the
scale, please first turn on(or tap on) and wait for it turns off
before measuring your weight. Otherwise, the scale will add its
own weight.