Blood pressure monitors

[DearHeartPleaseSTFU]

Would it be overkill to get a monitor like this to use at home?   http://www.amazon.com/Omron-HEM-907XL-IntelliSense-Professional/dp/B000FENZPS/ref=sr_1_1?s=hpc&ie=UTF8&qid=1301417340&sr=1-1

I've seen this particular one in more than one clinic...do you have to somehow maintain or calibrate these professional monitors like the one I linked to above, or do you just use them for life without any cares?

I have this one right now, but am worried it's not always accurate...are these typical "drug store bought" $75 home monitors accurate enough or not?  http://www.amazon.com/Omron-HEM-780-Automatic-Pressure-Monitor/dp/B0009XQUES/ref=sr_1_1?s=hpc&ie=UTF8&qid=1301417603&sr=1-1

[CCF HeartMD5]

Having a blood pressure monitor at home is often very helpful in the management of hypertension. There are a wide range of models available that can fit most budgets. More important than any bells and whistles, is to make sure that your home blood pressure monitor is reliable and accurate. The best way to check this is to have it calibrated or compared to your physicians measurement by taking it with you to your next doctor's appointment. Also, always try to measure your blood pressure at the same time each day, while at rest. For example, after waking up in the morning works for some people.

[CCF HeartMD5]

Having a blood pressure monitor at home is often very helpful in the management of hypertension. There are a wide range of models available that can fit most budgets. More important than any bells and whistles, is to make sure that your home blood pressure monitor is reliable and accurate. The best way to check this is to have it calibrated or compared to your physicians measurement by taking it with you to your next doctor's appointment. Also, always try to measure your blood pressure at the same time each day, while at rest. For example, after waking up in the morning works for some people.