At age 67 which blood pressure monitor i.e. rossmax or ormron - should i buy for my about 5 years of htn? rossmax has a "rest" function for accuracy.

Hard to say: I applaud your purchasing a BP cuff. I think it's a very good way to be sure your BP is well controlled. There are many models, even from each manufacturer. If possible, buy the least expensive but check it against a reliable standard, like at your doctor's office, and return it if it's not accurate. Most cuffs I've seen are generally within 10 points. Arm cuffs are better than wrist cuffs.