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Comparison A&D UA-888 vs A&D UA-767

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A&D UA-888
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This model is equipped with a cuff with dimensions 23 – 37 cm. Model UA-888E has a cuff with dimensions 22 – 32 cm, and model UA-888EAC is equipped with a DC adapter and a cuff with dimensions 22 – 32 cm.
Typeautoauto
Place of measurementshouldershoulder
Power sourcebatteriesbatteries / mains
Batteries4xAA
Battery indicator
Device dimensions
96x68x130 mm /weight: 240 g/
Specs
Pressure measuring range
20 – 280 mmHg /error 3 mmHg/
20 - 280 mmHg
Pulse measurement range
40 – 180 bpm /error 5%/
40 - 200 bpm
Cuff dimensions23 – 37 cm22 – 32 cm
Recording readings30 pcs
Features
Functions
pulse measurement
determination of arrhythmia
medium pressure calculation
measurement error signal
auto switch-off
WHO colour scale
pulse measurement
 
 
 
auto switch-off
 
In box
cover / case
batteries
 
 
Added to E-Catalognovember 2013february 2012

Power source

Type of power source of the blood pressure monitor. Power is required only for automatic and semi-automatic models (see "Type") — mechanical ones work solely due to the muscular strength of the user.

Batteries. The blood pressure monitor is powered by replaceable batteries that have a standard size — for example, AA. Such devices are autonomous, because they do not require a mains connection, and batteries are purchased without problems and are easy to change, unlike built-in batteries (see below). On the other hand, batteries are usually not included in the package, and you have to buy them regularly, which is associated with corresponding expenses. An alternative is to buy the elements in the form of rechargeable batteries; they are quite expensive, however, having paid once for batteries and a charger, you no longer have to spend money on energy sources. Anyway, all blood pressure monitors with measurement on the wrist (see "Measuring place"), as well as some models of "shoulder" models, are powered by batteries.

— Batteries/mains. These blood pressure monitors offer dual power options, allowing them to operate on both replaceable batteries and a 230 V network. This versatility enables battery usage in remote locations and the convenience of plugging into the network in more conventional settings to conserve battery life. However, the use of the net...work requires a power source and adds bulk to the complete set. As a result, this type of power supply is exclusive to blood pressure monitors with measurements on the upper arm.

— Battery. These blood pressure monitors are powered by a proprietary, non-standard battery that is often non-removable. Similar to standard batteries, these power sources provide autonomy, allowing the device to function without nearby outlets. However, recharging the exhausted battery requires an electric source, typically an outlet, and the process is time-consuming. As a result, this power supply type is not widely adopted in blood pressure monitors and is primarily found in compact models where the use of standard batteries is technically impractical.

Batteries

The type of batteries used in blood pressure monitors.

— AA. One of the most common types of batteries today. Voltage — 1.5 V. One of the main advantages of this type of power supply is availability: AA batteries are sold almost everywhere where any batteries are sold at all.

— AAA. A kind of reduced analogue of AA batteries (see above) with the same operating voltage of 1.5 V. AAA batteries are also very common, and the dimensions allow them to be used in more compact devices.

Pressure measuring range

The effective measurement range of a blood pressure monitor covers both "upper" and "lower" pressure values. Most modern devices have a lower limit within 0-20 mm Hg, which is adequate for the majority of cases. As for the upper limit, a device with a maximum value of 180 mm Hg is generally sufficient for individuals without a history of significant blood pressure spikes until old age or without serious illnesses. However, for those prone to substantial increases, it's advisable to consider devices with higher upper limit values, which can reach up to 280 mm Hg in modern blood pressure monitors.

Pulse measurement range

The blood pressure monitor's pulse rate measurement capability typically falls within a range of 30-40 to 180 beats per minute. While extending the lower limit is unnecessary for household blood pressure monitors, a higher upper limit may be essential for measurements during intense physical activity or for individuals with conditions causing significant heart rate acceleration, such as tachycardia.

Cuff dimensions

The cuff's applicable range includes both the minimum and maximum circumferences of the upper arm or wrist (see "Place of measurement"). Modern blood pressure monitors typically feature cuffs suitable for individuals with average physique, covering the majority of adult patients. However, for specialized cases, such as monitoring a child or someone with a larger bicep circumference, it is advisable to measure the arm circumference and compare it with the specified cuff sizes.

Small. The small cuffs are designed for a shoulder girth of 17-22 cm.

Standard. Standard cuffs cover a shoulder girth of 22-32 cm.

Oversized. Oversized cuffs have a girth of 22-36 cm.

Universal. Cuffs for both thin and large people. Universal cuffs provide a shoulder girth of 22-42 cm.

Large. Large cuffs with a girth of 33-46 cm are suitable for a full arm or a muscular shoulder of a conditional bodybuilder.

Recording readings

The number of results that can be simultaneously stored in the blood pressure monitor's memory. The ability to store several results in memory can be useful, for example, to compare pressure readings in the morning, afternoon and evening — these results do not have to be manually recorded or memorized.

Functions

Pulse measurement. The ability to use a blood pressure monitor to measure heart rate (pulse). This frequency, along with blood pressure, is one of the most important indicators of the state of the cardiovascular system.

Determination of arrhythmia. Blood pressure monitors with this feature are able to track irregularities in the heartbeat (arrhythmia) — one of the important signals of health problems — and warn the user about it.

Medium pressure calculation. This function allows you to automatically calculate the average pressure based on several consecutive measurements.

Signal about measurement errors. Blood pressure monitors with this function are able to display error signals that can affect the accuracy of measurements — such as incorrect cuff application, air leakage from it, movement during measurement, device electronics failure, etc.

Auto switch-off. Most semi-automatic and automatic models of blood pressure monitors are able to automatically turn off after a few minutes of inactivity. This saves battery power.

Synchronization with PC. In this case, a wired connection is implied, not Bluetooth. Synchronization of the blood pressure monitor with a PC allows you to track...all the measurement results in one table (in some models — even with the date and time), save the results to the PC, freeing up the device's memory, select measurements for calculating the average pressure, etc.

— Bluetooth. The presence of wireless data transfer technology allows you to use the features described in the paragraph "Synchronization with a PC" by connecting to a smartphone and using a special application. This method is more mobile, easier and faster.

Voicing the measurements. Such blood pressure monitors are able not only to display the measurement results on the screen, but also to voice them, which can be very useful for elderly people with poor eyesight.

— Date and time indication. Having the ability to display the current date and time is useful for recording blood pressure measurements and tracking them over time. Blood pressure monitors equipped with a clock and calendar feature can automatically store measured pressure results in memory, associating them with specific date and time stamps when there is a recording mode.

WHO colour scale. The World Health Organization has established standards defining normal, low, or elevated blood pressure values. These standards incorporate a color scale that, after each measurement, aids in assessing the pressure status and determining appropriate actions. It's important to note that individual variations exist, and what constitutes normal pressure differs for each person. Therefore, these standards are generally advisory, providing guidance rather than prescribing specific actions.

In box

Additional cuff. The blood pressure monitor set includes two cuffs, main and auxiliary, which differ from each other only in standard size. Usually, the auxiliary cuff has a longer length. For example, if the length of the main cuff is 22-36 cm, then the auxiliary cuff will be one size larger, that is, 30-42 cm. An additional larger cuff allows you to expand the circle of users of the blood pressure monitor.

Power source. Blood pressure monitors with a power supply option can operate using a 230 V household power supply, eliminating the need for frequent battery replacements. Interestingly, many of these monitors also come equipped with batteries, providing users flexibility in choosing the power source for the measuring device.

Cover/case. The blood pressure monitor comes with a dedicated bag for convenient storage and transportation of all its components. Depending on the tonometer's configuration, the case can accommodate the device, primary and auxiliary cuffs, a stethoscope, spare batteries, a power supply, and instructions. Some cases even include an extra compartment for storing medications. Typically, the tonometer bag is soft.

— Batteries. The blood pressure monitor operates on replaceable batteries, commonly using AA or AAA batteries. This battery-powered design makes the device self-contained, allowing its use in remo...te locations or while traveling without access to a household electrical outlet. However, a drawback of battery-powered blood pressure monitors is the requirement for regular battery replacement or recharging.
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