Comparison A&D UB-202 vs A&D UB-402

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	A&D UB-202	A&D UB-402
	Outdated Product	from $24.00 Outdated Product
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Main	Intellitronics intelligent control system. Wide range and accuracy of measurements. 90 memory cells. Arrhythmia and battery indicator. WHO colour scale. Automatic calculation of the average value of measurements. Complete case.
Type	auto	auto
Place of measurement	wrist	wrist
Power source	batteries	batteries
Batteries	2xAAA	2xAAA
Battery indicator
Device dimensions	64x38x72 mm	76х74х100 mm
Specs
Pressure measuring range	20 – 280 mmHg	20 – 180 mmHg
Pulse measurement range	40 – 200 bpm	40 – 200 bpm
Cuff dimensions	13.5 – 21.5 cm	13.5 – 21.5 cm
Recording readings	90 pcs	60 pcs
Features
Functions	pulse measurement determination of arrhythmia medium pressure calculation measurement error signal auto switch-off WHO colour scale	pulse measurement determination of arrhythmia medium pressure calculation measurement error signal auto switch-off WHO colour scale
In box	cover / case batteries	cover / case batteries
Added to E-Catalog	july 2013	february 2012

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.

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.