Blood pressure reading 150/76. Manual Blood pressure 130/72

I use Omron blood pressure monitors and I can say that they are up to the mark. Their readings are very accurate and have not caused any problems so far.

BEFORE TAKING THE READING DONT USE IT BEFORE COMING UP FROM STEPS OR SUDDENLY WALKING AND TAKING READING
IF YOU TAKE READING IT WILL COME HAZARDIOUS
SIMPLY RELAX FOR 10 MINUTES AND STAY CALM WITHOUT TALKING
AND FOLLOW AS PER MANUALS TO TAKE READING

Generally, the recalibration has to be done by the manufacturer, as the calibration has to be certified. Most manufacturers charge little or nothing for this service. Contact the number in your Owner's Manual concerning how they want you to send it to them.

Hope this helped and thanks for choosing FixYa.

Recalibration normally has to be done by the manufacturer. As they have to certify the calibration. Keep in mind, that it is not unusual for your BP to read a bit higher at the doctor's office, than it does at home. It's sarcastically called "White coat hypertension." Which translated means, your blood pressure rises a bit at the doctor's office due to anxiety. Or it's being taken at a different time of day, than you take it at home, in a relaxed atmosphere.

Hope this helped you.

First, I do not believe there is any accurate way to measure blood pressure without having a valve installed; not a practical alternative.
The standard method using an arm-cuff and stethoscope is highly dependent on the person doing the measurement. Once my hearing started to fail, I had to go to a digital meter and found after three of these which failed and comparing my current Samsung to three different methods; manual, an elaborate 'calibrated' digital on a stand and another 'calibrated' cuff-type during an examination by a professional, none of these agreed better than 10-15 mm and the worst was 25-30 mm apart.
Using the average of those 'profis,' my current wrist-type digital measures about 10 points low on both systolic and diastolic so I just ignore the absolute numbers and use it only to determine relative deviations. For that, mine is repeatable enough.

I assume you mean checked for accuracy - something that you should do every two years. I assume you live in Canada or the US, if so please contact OMRON at the number below. They will be able to direct you to a service centre near you.

CONSUMER SUPPORT TOLL FREE NUMBER: 1-877-216-1333

Customer Service Representatives are available
Monday through Friday - 8:30am to 4:30pm CT

Cannot be calibrated.

we are the sold distributors for omron Blood pressure monitor in Chennai Please feel free to contact on my number +91-9884462250

I'm not sure why you need it calibrated if your Docotor says it's accurate but here is a web site link....

I hope this helps.
http://www.omronhealthcare.com/product/s1-1126-186-manual-monitor