HoMedics HL158VA User manual

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I
In ns st tr ru uc ct ti io on n M Ma an nu ua al l
Automatic
Wrist Blood Pressure Monitor
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Mo od de el l N No o. . H HL L1 15 58 8V VA A

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Table of Contents
Medical Disclaimer…………………………….………………………………………………03
Intended Use………………………………………….……………………………………..…03
About Blood Pressure……………………………….………………………………………04
Measurement Method…………………………………….…………………………………06
Accuracy……………………………………………………………………………………………07
Precautions…………………….…………………………………………………………………08
Device Overview……………………………………………………………………………….10
Symbol Definitions………………………………….……………………………………….13
Features……………………………………………………..…………………………………….14
Installing Batteries……………………………………….………………………………….20
Applying the Cuff…………………………………………………..………………………….21
Positioning Guide…………………………………………………….……………………….22
Measurement Procedure………….……………………..……………………………….23
Bluetooth Transmitting………………………………………………………………….…27
Memory Function………………………………………………….………………………….29
Storage and Maintenance…………………………………….………………………….30
Troubleshooting……………………………………………………….……………………….31
Warranty & Recalibration……………….……………………….……………………….33
Specifications…………………………………………………………….…………………….34
Note…………………………………………………………………………….…………….…….35
Appendix…………………………………………………………………………………….…….37
Blood Pressure Diary……………….………………………………….…………….…….39

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Medical Disclaimer
This manual and product are not meant as a substitute for advice
provided by your doctor.
You are not to use the information contained herein, or this product
for diagnosing or treating a health problem or prescribing any
medication. If you have or suspect that you have a medical problem,
promptly consult your healthcare provider.
Intended Use
HL158VA automatically measures human’s Systolic, Diastolic blood
pressure and heart rate by using the oscillometric method during
inflation. All values can be read out in one LCD panel. Measurement
position is at human being’s wrist. The intended use of this
over-the-counter device is for adults aged 18 years and older with
wrist circumference ranging from 5.3 inches to 7.7 inches (approx.
135 mm to 195 mm) and for home use.
HL158VA detects the appearance of irregular heartbeats during
measurement; an indicated symbol will appear with measuring
reading. And the Risk Category Indicator will show the information
with the readings on the screen for the user tracking their blood
pressure level.
Besides, the device features a built-in "Bluetooth Data Transmission"
function, which enables the device automatically transmit measuring
results to paired Bluetooth-enabled device. Also, users could simply
synchronize the current date and time, and check the battery status
of blood pressure monitor by means of DailyChek®application
software with the paired Bluetooth-enabled device.

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About Blood Pressure
1. What is blood pressure?
Blood pressure is the measurement of the force of blood pushing
against the walls of the arteries. Arterial blood pressure is
constantly fluctuating during the course of the cardiac cycle. The
highest pressure in the cycle is called the systolic blood pressure,
and represents the pressure in the artery when the heart is beating.
The lowest pressure is the diastolic blood pressure, and represents
the pressure in the artery when the heart is at rest. Both the
systolic and the diastolic pressure are necessary for a physician to
evaluate the status of a patient's blood pressure.
Many factors such as physical activity, anxiety or the time of day,
can influence your blood pressure. Blood pressure is typically low
in the mornings and increases from the afternoon to the evening.
It is on average lower in the summer and higher in the winter.
2. Why is it useful to measure blood pressure
at home?
Having one's blood pressure measured by a doctor in a hospital or
a clinic, is often associated with a phenomenon called “White Coat
Hypertension” where the patient becomes nervous or anxious,
thus raising his blood pressure. There are also numerous other
factors that might cause your blood pressure to be raised at a
specific time of day. This is why medical practitioners recommend
home monitoring as it is important to get readings of blood
pressure during different times of the day to really get an idea of
your real blood pressure.
Medical practitioners generally recommend the “Rule of 3”, where
you are encouraged to take your blood pressure three times in a
row (at 3 ~ 5 minute interval), three times a day for three days.
After three days you can average all the results and this will give
you an accurate idea of what your blood pressure really is.

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About Blood Pressure
A. AHA blood pressure classifications:
Standards for assessment of high or low blood pressure without
regard to age, have been established by the American Heart
Association (AHA 2017), as shown in the below chart.
BLOOD PRESSURE CATEGORY SYSTOLIC mm Hg
(upper number) DIASTOLIC mmHg (lower number)
NORMAL LESS THAN 120 and LESS THAN 80
ELEVATED 120-129 and LESS THAN 80
HIGH BLOOD PRESSURE
(HYPERTENSION)STAGE 1 130-139 or 80-89
HIGH BLOOD PRESSURE
(HYPERTENSION)STAGE 2 140 OR HIGHER or 90 OR HIGHER
HYPERTENSIVE CRISIS
(consult your doctor immediately) HIGNER THAN 180 or HIGHER THAN 120
However the above chart is not exact for classification of blood
pressure and it's intended to be used as a guide in
understanding non-invasive blood pressure measurements.
Please consult with your physician for proper diagnosis.
B. Variations in blood pressure:
Individual blood pressures vary greatly both on a daily and a
seasonal basis. These variations are even more pronounced in
hyper tense patients. Normally the blood pressure rises while at
work and is at its lowest during sleeping period.
(hyper tense: means a person who has high blood
pressure symptom.)
The graph below
illustrated the variations
in blood pressure over a
whole day with
measurement taken
every five minutes.
The thick line represents
sleep. The rise in blood
pressure at 4 PM (A in
the graph) and 12 AM (B
in the graph) correspond
to an attack of pain.
(Direct arterial pressure recording in unrestricted man.
Beven, Honour & Stott: Clin. Sci. 36:329. 1969)

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Measurement Method
HL158VA Automatic Wrist Blood Pressure Monitor measures blood
pressure and heart rate by oscillometric method, meaning the
fluctuations in pressure are measured. Once the cuff is wrapped
around your wrist, just turn on the monitor and inflation
automatically starts. The inflation of the cuff creates pressure around
the arteries inside the wrist.
Within the cuff is a gauge which senses the fluctuations (oscillations)
in pressure. The fluctuation measured represents the degree of
intensity that your arteries contracting with each heart beat, and also
a result of the pressure that the cuff has placed on the wrist. The
monitor measures these contractions and converts the information to
a digital value. This is the result displayed on the monitor screen.
Once the measurement is complete, the cuff will automatically
deflate.
Note!
* The patient is an intended operator.
* The applied part is the cuff.

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Accuracy
HL158VA Automatic Wrist Blood Pressure Monitor has been clinically
tested against a scientific device called a mercury
sphygmomanometer, considered the gold standard in blood pressure
measurement.
All HL158VA Automatic Wrist Blood Pressure Monitors have
performed equivalent to measurements taken with this scientific
device and are within the accuracy limits prescribed by the American
National Standard for Electronic or Automated
Sphygmomanometers.
The SPHYGMOMANOMETER was clinically investigated according to
the requirements of ISO 81060-2:2013.
* In case it is needed to have the device checked for calibration,
please consult the distributor.

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Precautions
* Read the Instruction Manual thoroughly before measuring and
keep it at hand for your reference at any time.
* The device is designed for home use and not suitable for clinical
use.
* This monitor is not intended for use in the MR environment.
Do not take a measurement in a low (less than 41 /℉5 )℃and
high (more than 104 /40 )℉℃temperature, nor in a place outside
humidity ranges (15 % ~ 93 % R.H.), and atmospheric pressure
ranges (700 ~ 1060 hPa), or you may get inaccurate readings.
Wait 30 ~ 45 minutes before measurement if you’ve just
consumed caffeinated beverages or smoked cigarettes.
Rest at least 5 ~ 10 minutes before taking a measurement.
To allow your blood vessels to return to the condition prior to
taking the measurement, please wait at least 3 ~ 5 minutes in
between measurements. You may need to adjust the wait time
according to your personal physiological situation.
We recommend you using the same wrist (preferably the left wrist)
and measuring around the same time each day.
Perform measurements in a quiet and relaxed environment at
room temperature.
Do not move or shake the device during a measurement. Please
keep quiet and do not talk during measurements.
This product is not suitable for:
Pregnant women
People with arrhythmias
Undergoing intravenous injection on any limb
Currently in a dialysis treatment
In pre-eclampsia condition

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*Attention ！
1. Do not use the device on infants, children, or those who cannot express their own
intention.
2. The medical device should not used adjacent to or stacked with other equipment. In
case adjacent or stacked use is necessary. The medical device should be observed to
verify normal operation in the configuration in which it will be used.
3. Consider the electromagnetic compatibility of the device (ex. power disturbance, radio
frequency interference etc.) Please use it indoor only.
4. Over high frequency measurements may result in blood flow interference, which is
likely to cause uncomfortable sensations, such as partial subcutaneous hemorrhage, or
temporary numbness to your arm. In general, these symptoms should not last long.
However, if you do not recover in time, please seek your medical practitioners for help.
Precautions
For those who have had a mastectomy or lymph node clearance, it
is recommended to take a measurement on the unaffected side.
When used among medical electronic equipment on the same limb,
pressurization of the cuff may cause temporarily malfunction to
other device.
If you have one of the circulatory problems as arteriosclerosis,
diabetes, liver disease, kidney disease, severe hypertension,
peripheral circulation……, please consult your healthcare
professional before using the device.
Blood pressure measurements taken with this device are
equivalent to those obtained by a trained observer using the cuff
/ stethoscope auscultation method and are within the accuracy
limits prescribed by the American National Standard for Manual,
electronic, or Automated Sphygmomanometers.

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Device Overview
Product components
LCD DISPLAY
WRIST
CUFF
START / STOP
BUTTON
MEMORY
BUTTON
BLUETOOTH BUTTON
Battery Cover
(located on bottom of unit)

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Device Overview
AAA (LR03) (1.5V)
ALKALINE BATTERY X 2
*Caution ！
Substitution of a component different from that supplied might result in measurement error.
DATE
/
TIME BUTTON
SET BUTTON
USER BUTTON

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Risk Category Indicator
Low Battery Symbol
Device Overview
Unit display
User selected for User 1 or 2
Bluetooth Symbol
Wrist Position Guide
Heart Rate
Pulse Symbol
Date: MM/DD/YY
Time: hour/minute with PM icon
Systolic pressure
Diastolic pressure
Dis
p
la
y
avera
g
e of last 3 readin
g
Irregular Heartbeat Detector
Error Indicato
r

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Symbol Definitions
SYMBOLS Definitions
Low Battery Symbol
This symbol appears when the battery power is excessively
low or the polarity reverses.
We suggest you replace all batteries with new ones, and
make sure the +/- polarities are properly positioned.
Error Symbol: Error display.
Pulse Symbol
Once pulse is detected, the symbol flashes with each
pulse beat.
Our suggestion:
Please do not talk or move during measurements.
Irregular Heartbeat Detector
This symbol appears for 1 minute when the user was
talking, moving, shaking, or an irregular heart beat was
detected during measurements.
Our suggestion:
Please do not talk or move during measurements.
Repeat the measurement after resting for at least 5
minutes, and restart your measurement while sitting
down comfortably and quietly.
Wrist Position Guide
The Wrist Position Guide is used as an aid in determining if
the device is at the appropriate angle and height.
User 1: Appears when the monitor is operated by User 1.
User 2: Appears when the monitor is operated by User 2.
Average of Last 3
Measurements
Memory Average: Display average of last 3 readings
Risk Category Indicator
Compares readings against blood pressure guidelines. See
next page for more information.
Bluetooth Symbol
Under Bluetooth Data Transmission / Link Mode, LCD
displays this symbol.

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Features
WRIST POSITION Guide
HL158VA has a built-in the Wrist Position Guide will be used as an aid
to help user determining if the device is at appropriate angle and
height. After you press button, the display will illuminate with
different icons that are designed to guide you move your wrist. Once
the appropriate angle and height is found, the Pulse ( ) Symbol will
flash with beep sound for 3 times and measurement will begin. This
feature is optional and users can turn this feature OFF by holding
button for 3 seconds.
SYMBOL ACTION
Move your wrist up.
Move your wrist down.
Rotate your wrist to your left.
Rotate your wrist to your right.
*Note!
This Wrist Position Guide is only for reference on blood pressure measurement.
Due to difference in individual size, physique, and being dependent on the height
of the table and desk, in addition to the position of the hand in comparison to the
horizontal plane of reference and the heart, this feature may not helpful in all
cases. If you feel the position of the wrist according to Wrist Position Guide does
NOT match your heart level, you can select to turn this feature off and consult your
healthcare provider.

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Features
Risk Category Indicator(AHA 2017)
This device is equipped with Risk Category Indicator which classifies
your blood pressure measurements into five stages (Normal, Elevated,
Hypertension stage 1, Hypertension stage 2 and Hypertensive crisis)
based on the blood pressure standards established by the American
Heart Association (AHA). Besides, for yours and your loved ones’
health, we further classify the five stages into numeral ranges, which
sorts out hypertension symptoms more clearly. Moreover, to your
convenience and readability, we use four symbols to represent your
measuring result. Refer to below comparison chart for details:
NORMAL ELEVATED HYPERTENSION
STAGE 1
HYPERTENSION
STAGE 2
HYPERTENSIVE
CRISIS

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Features
After measurement, LCD displays the systolic and diastolic
pressure, heart rate, date and time along with Risk Category
Indicator symbols. Compare the symbol of LCD display, to know
the classification of your blood pressure based on American Heart
Association standard (AHA 2017).
*Note ！
When a person’s systolic and diastolic pressures fall into different categories, the higher
category should apply.
e.g. systolic rate 181 & diastolic rate 99 
Hypertensive crisis
e.g. systolic rate 110 & diastolic rate 95 Hypertension stage 2

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Features
Irregular Heartbeat Detector
The symbol will appear on screen indicating a certain
heartbeat irregularity was detected during measurement.
The heartbeat rhythm that is more than or less than 25% from the
average rhythm is usually defined as an irregular heartbeat rhythm.
Talking, moving, shaking or an irregular pulse during the
measurement can result in the appearance of this symbol.
Usually this is not a cause for concern, however if the symbol
appears often, we recommend you seek medical advice.
And please note that the device does not replace a cardiac
examination, but serves to detect pulse irregularities at an early
stage.
*Note ！
The pulse display is not suitable for checking the frequency of heart
pacemakers. If a certain pulse irregularity is detected during measurement
often, we recommend you seek medical advice.
As a safeguard, we recommend that if you have arrhythmias such as atrial or
ventricular premature beats and atrial fibrillation or any other special
conditions you should check with your physician before using your device.
The IHB function is not designed for use by people with arrhythmias nor for
diagnosing or treating an arrhythmic problem. In order to filter the unstable
status of user and avoid affecting the detection of heart rate from any
movement, shaking or talking in the beginning of measurement, the method of
averaging heart beat intervals of subject device is calculated with the three
proper heart beat pulses detected in the beginning of measurement and that is
different from a strict mathematical averaging of all recorded intervals.
At least 3 beats with at least 25 % difference from the average heart beat
interval will generate the IHB icon on the screen.

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Features
Bluetooth Data Transmission
HL158VA features a built-in “Bluetooth Data Transmission” function, which
enables the device automatically transmit measuring results to paired
Bluetooth-enabled device after measurement. When connection established,
BPM would transmit memory data such as Measure Date, Systolic, Diastolic
and Pulse to the Bluetooth enabled device.
If paired Bluetooth-enabled device is not working or is not within RF range of
this device, the measuring results will be stored in the blood pressure
monitor's memory. Besides, user can press “ ” button for 3 seconds to
resend the measurement data.
Bluetooth compatibility with blood pressure monitor for Bluetooth-enabled
device is:
Bluetooth 4.2 for Android 6.0 or above,
Bluetooth 4.2 for iOS 7.0 or above
*Note ！
HL158VA is subject to and complies with electromagnetic compatibility
(EMC) standard of IEC 60601-1-2, EN 301 489-1, EN 301 489-17, EN
300 328 and U.S. federal guidelines, Part 15 of the FCC (Federal
Communications Commission) rules for devices with RF capability. These
guidelines help ensure that your device will not affect the operation of
other nearby devices. Additionally, other devices should not affect the
use of your device.
Other wireless devices that are in use nearby, such as a cell or mobile
phone, or a wireless network, may prevent or delay the transmission of
data from your device to paired Bluetooth-enabled device. Moving away
from the source of the interference or turning off these devices to resolve
the problem.
Make sure HL158VA and paired Bluetooth-enabled device are within
acceptable distance (no more than 10 meters) with each other. If not,
put them closer.
Be sure to select the correct User on the monitor before your blood
pressure measurement begins.
Bluetooth date transmission is not available under measurement.

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Features
Application Software for Bluetooth
To fully utilize this feature, users need to ensure Bluetooth support of
Wireless (usually under settings menu) on their Android or iOS device
for contactless data exchange. Then, download and install
“DailyChek®” application software from Google Play on the
Bluetooth-enabled device which is compatible with Android 4.3 or iOS
7.0 or above. Please follow the following steps for installing:
1. To install DailyChek®FREE APP, go to the Google Play TM APP store,
and search for DailyChek®.
2. Click the INSTALL button. Once installed, click on DailyChek®
APP icon.
3. Open the APP. New user please register your profile.
4. Confirm your profile is correct and Click OK to next step.
5. User must login again. After login, please turn ON Bluetooth
feature of the BPM.
6. Now you can start using your Android version or iOS version of
DailyChek®APP with Bluetooth feature, it’s a simple tool to log,
track and trend your test results from your Bluetooth-enabled
Device.
*Note ！
1. DailyChek®Software Manual contains explanations of functions
and instructions of how to activate them.
2. Access DailyChek®Software Manual via DailyChek®Application
Software to completely utilize this feature.

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Installing Batteries
When LOW BATTERY SYMBOL appears on the display, or
nothing appears on the display when the power is switched on, please
change the batteries.
Replace all worn-out batteries with new ones and do not mix new and
used batteries. Do not mix alkaline, standard (carbon-zinc) or
rechargeable (cadmium) batteries either. Such action may shorten
the battery life or cause the device to malfunction.
Remove the battery cover and insert 2 AAA (1.5V, LR03) alkaline
batteries into the battery compartment as shown on the figure below.
Make sure the polarities “+” and “–” ends are coinciding with similar
markings engraved on the battery housing.
1. 2. 3. 4.
*Attention ！
Batteries are hazardous waste. Do not dispose of them together with the
household garbage. Please take the used batteries to the recycling
collection point according to your local regulations.
Keep the battery away from small children in case they swallow it.
If the device is not to be used for over 2 months, please remove the
batteries from its compartment for power-saving.
Please replace all worn-out batteries with new ones when you are
operating the Bluetooth transmission function, and the LOW BATTERY
SYMBOL appears on the display.
Memories (if any) will not be deleted during battery replacement.
After replacing the batteries, reset the date and time.