Older model, but very high quality professional brand name BP Pressure taker
One can be pretty confident buying OMRON brand blood pressure taking machines.
This one is a little on the older side, but has pretty much ALL the features of current machines:
Records in memory time and date of pressure readings. Has two user memory. Has automatic adjustment of max inflation pressure depending on what pressures it saw last... updated if it has any problems with a current effort at a reading.
LARGE, easy to read display. Ultra easy user interface for comon functions. Indeed, it's truly a PHD interface (P H D interface = "Push Here, Dummy!")
VERY easy to put on cuff. Especially so.
Can be powered off a wall power supply source, but works for a VERY VERY long time on AA cells. Alkaline (DO NOT USE THOSE, tho), or AA lithium 1.6 volt, OR 1.2 volt NiMH LSD cells (Low Self Discharge)
Ccriticisms::
Can NOT download its memory to a computer.
STUPIDLY they did not provide capacitor backup for the clock / clock settings, so it loses its date and has to be reset after even a very momentary loss of power. A pain in the rear when you do change batteries.
Somewhat too big for travel.
But for most purposes a truly excellent unit.
Has a feature of taking three blood pressures over time automatically, then averaging two that are closest. But it's awkward to call up and to use that feature... I'm not impressed by that (and I'm a physician)