Omron M10-t Blood Pressure Monitor (Norbiton KT2)

You can look this up for a photo!

Around 6-7 years old and working fine as far as I can tell.

My wife wanted to replace as the GP suggested they COULD go out of alignment over time and she has very critical BP measurements to take at the moment.

I have been using it for the whole period and never noticed any variance between what it reads and my annual measurement at the GP, and I have hypertension - I would probably have kept it personally

You can check/calibrate it at the GP surgery by taking it down there. taking a measurement on this and then one on their kit. Be sure sure you are fully rested and stable before you do this. If you have raced to the surgery this pushes your pulse up and the second measurement could be lower even in a couple of minutes. The Receptionist might be able to advise.

These are not cheap so hoping it would be of use to someone who can't afford one - at least it gives an initial reading!

Comes with manual and even a CD with an app that doesn't work with Windows 10!

And working at present with batteries