LifeSource UA-851THW Wireless Automatic Blood Pressure Monitor — Instruction Guide

Instruction guide for the LifeSource UA-851THW Wireless Automatic Blood Pressure Monitor — an oscillometric monitor with wireless data transfer to the Wellness Connected software/ActiHealth online service via an ActiLink USB Transceiver.

Important Safety Information

• Only a medical practitioner is qualified to interpret your blood pressure measurements. This device should not replace regular medical examinations.
• Consult your physician if you have any doubt about your readings. For mechanical problems, contact LifeSource at 1-888-726-9966.
• Do not attempt to service, calibrate, or repair the monitor.
• The monitor contains delicate, high-precision parts — avoid extremes of temperature, humidity, direct sunlight, shock, and dust. Accuracy is guaranteed only within the storage/operating ranges listed in Specifications.
• Clean the monitor and cuff with a dry, soft cloth, or a cloth dampened with water and mild detergent. Never use alcohol, benzene, thinner, or other harsh chemicals.
• Remove and replace batteries if the monitor is unused for more than six months. Alkaline batteries are recommended (rechargeable batteries will not work).
• Keep the monitor away from external noise/strong electromagnetic waves and away from metal or walls that could impede the ActiLink radio signal.
• Intended for home use by those 12 years and older, to monitor systolic/diastolic pressure and pulse rate.
• For connection to a power supply outside the U.S.A., use a properly configured attachment plug adapter. The AC adapter is intended to be used in a vertical or floor-mount orientation.

Monitor Components

Front: Display, START button.
Back: Air Connector Plug / Air Socket, Battery Compartment with Battery Cover, AC Adapter Jack, Serial No. Label.
Included accessory: ActiLink USB Transceiver (with its own Serial No. Label) for wireless data transfer to your computer.
Arm Cuff with Air Hose connects to the Air Socket.

Getting Started

Setting Up Wellness Connected Software

1. Go to http://www.LifeSourceOnline.com/getstarted
2. Download the Wellness Connected Tracking Software and follow the install instructions.
3. Run the software and complete the setup/registration walkthrough.

If you already use another Wellness Connected device, skip this and simply add the UA-851THW in the Devices tab of your account.

Installing the Batteries

1. Remove the battery compartment cover by pushing down on the arrow and sliding it forward.
2. Insert the bottom row of batteries first (4x AA, 1.5V). Match positive/negative terminals to the markings in the compartment; ensure contact with the terminals.
3. Slide the cover back into place and press gently.

Note: Rechargeable batteries will not work with this monitor. The optional AC Adapter can be used instead (see below).

Selecting the Correct Cuff Size

Using the correct cuff size is critical for accuracy. A cuff too large produces a lower-than-actual reading; a cuff too small produces a higher-than-actual reading. Measure your upper-arm circumference at the midpoint between shoulder and elbow, arm hanging at your side.

Note: The LifeSource small cuff is NOT compatible with the UA-851THW. The cuff has an Index Mark / Proper Fit Range indicator to confirm you're using the correct size — if it falls outside the range, contact A&D Medical at 1-888-726-9966 (Canada: Auto Control Medical, 1-800-461-0991) for a replacement. If it falls on a borderline, pick either size but stay consistent across measurements.

Attaching the Cuff to the Monitor

Insert the Air Connector Plug of the cuff firmly into the Air Socket on the monitor. Be careful to distinguish the Air Socket from the AC Adapter Jack — the plug will only securely fit the correct jack.

Taking Your Blood Pressure

Tips

• Relax for about 5 minutes before measuring.
• Avoid smoking or caffeine for at least 30 minutes prior.
• Remove constricting clothing; place the cuff on a bare arm.
• Use the left arm unless your physician recommends otherwise.
• Do not talk, cross legs, or move during measurement; keep feet flat on the floor.

Steps

1. Sit comfortably with your left arm resting on a flat surface so the center of your upper arm is level with your heart.
2. Lay the arm palm-up and thread the cuff end through the metal loop (smooth side against skin); position the tube toward the inner arm, in line with your little finger.
3. Secure the cuff — snug but not tight (you should be able to insert two fingers between cuff and arm).
4. Confirm the Index Mark falls within the Proper Fit Range.
5. Press START. The Cuff Inflation Meter shows on the display as the cuff pressurizes (tightness is normal). If pressure is insufficient, the device automatically re-inflates. Press START again to stop inflation at any time.
6. When complete, systolic/diastolic pressure and pulse rate are displayed. The cuff deflates and the monitor auto-shuts-off after 60 seconds (or press START to turn off manually). The reading is stored automatically (up to 51 readings in memory).
7. Readings transmit wirelessly if within range of an active ActiLink USB Transceiver; otherwise they're held in memory until the monitor comes within range.

Important: Measure at the same time each day. The ActiLink Transceiver will not work if the connected computer is in sleep/suspend/hibernation mode. Range may be affected by walls and other environmental factors.

How the UA-851THW Works

Uses the oscillometric method — a noninvasive technique that measures arterial pulse vibrations against the cuff. The cuff inflates until the artery is fully blocked; inflation speed and pressure are optimized automatically, and measurements are taken during both inflation and deflation for a faster, more comfortable reading.

Cuff Inflation Meter

Shown on the left side of the display; the indicator moves up during inflation and down during deflation/measurement.

Irregular Heartbeat Detection

The monitor still provides a reading even with an irregular heartbeat, flagging it with an Irregular Heartbeat symbol when a heartbeat varies by 25% or more from the average interval during measurement. Relax, stay still, and avoid talking during measurement; contact your physician if this symbol appears frequently.

Pressure Rating Indicator™

Displays a segment corresponding to the JNC7 blood pressure classification (see table below) based on the current measurement, giving a quick snapshot of where your reading falls. Note this is approximate — other risk factors (diabetes, obesity, smoking, etc.) should be considered by your physician.

Using the Optional AC Adapter

Use only the optional LifeSource AC adapter to avoid damaging the monitor (contact LifeSource Health Line at 1-888-726-9966 to purchase).

• Connecting: insert the AC adapter plug into a 120V AC outlet, then connect the adapter plug into the jack on the back of the monitor.
• Disconnecting: turn the unit off (press START), disconnect the plug from the jack, then remove the adapter from the outlet.

About Blood Pressure

Blood pressure is the force exerted by blood against artery walls — systolic when the heart contracts, diastolic when it expands, measured in mmHg. It's affected by age, weight, time of day, activity, climate, altitude, season, caffeine/alcohol, medications, emotional stress, and even tight clothing. Blood pressure normally rises during activity and falls to its lowest during sleep.

Assessing High Blood Pressure — JNC7 Classification (U.S. adults)

Source: Seventh Report of the Joint National Committee on Prevention, Evaluation and Treatment of High Blood Pressure (NHLBI, May 2003).

WHO Classification (adults outside the U.S., e.g. Canada, Mexico)

Source: World Health Organization (WHO) standards.

Why Home Monitoring Matters

Readings taken at a doctor's office can be elevated due to apprehension/anxiety ("white coat hypertension"). Home self-measurement supplements clinical readings and provides a more complete blood pressure history — clinical studies show detection/treatment of hypertension improves when patients both consult physicians and monitor at home. Differences between home and clinic readings can also stem from different cuff sizes used.

Keys to Successful Monitoring

• Measure at the same time every day, in the same chair/position.
• Don't cross legs; keep feet flat on the floor.
• Relax for 5 minutes before measuring.
• Use the correct cuff size.
• Sit still during measurement — no talking, eating, or sudden movements.

Establishing a Baseline

Devote two weeks to consistent measurement conditions (same time, location, chair, cuff) to build a baseline you can compare future readings against — useful for evaluating the effect of lifestyle changes or medication.

Troubleshooting

If these steps don't resolve the issue, call 1-888-726-9966. Do not attempt to repair the device yourself.

Specifications

Blood pressure measurements from the UA-851THW are equivalent to those obtained by a trained observer using the cuff/stethoscope auscultation method, within ANSI limits for electronic/automated sphygmomanometers.

Warranty & Contact

This LifeSource device is covered by a lifetime warranty. Visit www.LifeSourceOnline.com for warranty registration.

A&D Medical, a division of A&D Engineering, Inc., 1756 Automation Parkway, San Jose, CA 95131 — LifeSource Health Line (toll-free): 1-888-726-9966. This device complies with FCC Part 15 rules.