evaluation problem of tension, I did test by a nurse on several measures, result 2 points difference. ..13 Instead of 15 which is serious because above 14 are treated hypertension. I bought a sphygmomanometer suveiller for me and for 4 months I'm hypertension without knowing it! This one has just been diagnosed by my cardio has the opportunity of a routine check ... What is a blood pressure if it is false. I will ask Amazon to pay me because it's serious ....
