You may not know but members at my gym have a Blood Pressure monitor available to them.  It’s tucked away in the lowest level of Catalyst Fitness NE near the water fountain.  My previous gym had one which was more difficult to use than this one.  You simply place your arm in a tube and start it with a button. it took maybe three minutes and displayed the results on a screen.  Your pulse was also shown.  If you need help finding it, I’ll be happy to show you.