Why I buy this one ?
- Cleared by the FDA to help detect morning hypertension
- ComFit Cuff is pre-formed for a quick and proper fit for both medium and large sized arms (fits arms 9" to 17")
- 2 user - 200 total memory with date and time stamp
- Single Read Mode with Advanced Averaging takes individual readings and automatically displays the average of the last 3 readings taken within 10 minutes of each other
- Simple, silent, 1-touch automatic operation

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What our customer's say!

"The CUFF wont fit", I purchased this 790IT blood pressure monitor because of its ability to store test information for two people. I was previously using an Omron 705 unit which worked very well but to retrieve one's test data you had to print it out and there was no way to determine who's data was who's. The 790 comes with a companion piece of software that will let me down load my data to my PC. Once the data is on the PC you can review it in several formats, I prefer the graph.
That is the good news now the undesirable side of things. The cuff has a stiff inner liner that makes it into a "U" shape. Both my Wife and I find it very difficult to get the cuff secured properly. This we could probably live with but in addition the unit would ERROR out and stop the test cycle. It took me a while to figure out that the problem was the fact that the cuff was to loose fitting. Even if it is tight if you have your arm laying on anything, like say a pillow, the unit will most likely error.
I have solved the issue for us by using the cuff supplied with the "705" unit. To do this I had to make an adaptor for the inflation hose since not all of their cuffs are compatible. Omron is a great company and I have specified a lot of their products in my engineering but this CUFF is not their best work.


"great machine", It does a great job. i took it to my dr and he got the exact same reading. its easy to use. I haven't tried the software yet.

"Excellent", We had a Omron automatic blood pressure monitor for years but it finally died. My wife tends to have high blood pressure so after some investigation I bought the Omron HEM-790IT to replace the old one. It is easy to set up and use but what I particularly like is the feature that allows you to download the data to your computer where it keeps track of the readings by date and time and allows you to print out a graph of the readings for any given time period. It keeps track of readings for two users.

My wife took it to her doctor's office and compared the readings to whatever they use, and they said it was reading a few points high, however, I'm not sure if theirs is calibrated. Anyway, we are very pleased with the unit.


"BP Monitor & Data Downloads for Graphic Interpertation...", Accurate and simply to use. Has a "true value" option that takes three successive readings for an average. Downloads readings into a DB with a software package for generating graphical displays in several different formats. Your doctor will love you!...

"Great machine...one problem", I purchased this machine due to the software that allows you to offload the data to your computer for tracking and giving my doctor a record of my BP. The machine seems to be very accurate...if you get the cuff tight enough when putting it on. The cuff is different than other Omron BP machines I've owned in the past and takes some getting used to. It is not as easy to put on by yourself as previous machines but with some practice it works fine. If you have another user to help with putting on the cuff you will get the most accurate BP readings.

Read this reviews before You buy...

"Not accurate", I ordered this after ordering another omron BP monitor for my husband. I thought would be great as I have the software for my pedimeter. Note my software folder with this was empty, this had to be a return item. I have used this item for 2 months now. I take 3 readings each arm within 1.5 minutes of each other aka every 30 seconds. On this unit my BP goes from 143/90 to 98/60 within 2 minutes. This has done this since day one and the tube for the cuff does not stay in.

The omron 705 cp with a printer that I ordered for my husband. Today 3 read outs on both my left and right arm. Left 122/88 pulse 85, 120/83 pulse 84, 120/78 pulse 85. Right arm 116/81 pulse 86, 120/81 pulse 86, 120/86 pulse 86.

When I was missing the software I should have returned this item.


"Great product", This worked great and it is so much easier to put on then my old one.I took it to the dr w/me and it matched the dr's.

"Monitor", Works wells. Like the ability to print report for my doctor. Need to take to your doctor and make sure it is reading correctly.

"Review of the Omron HEM-790IT Blod Pressure Monitor", Easy to use. The interface wth the computer is easy to set up and provides a graphic and text record for the user.

"OMRON HEM-790 IT BP UNIT REVIEW", OMRON HEM-790 IT BP UNIT REVIEW

I bought OMRON HEM-790 IT to replace a 12 year old Sunbeam-Oster 7622 BP unit which never worked properly and gave erratic reading. Highly skeptical that consumer level BP monitoring can actually work, I took CR (Consumer Report) recommendation, and bought an OMRON unit equipped with IntelliSense technology. The major concern of the purchase was the unit's accuracy, and thus the thrust of this report is to give a qualitative description of measurement methodology and a quantitative approximation of its accuracy.

The unit comes with AC adaptor, batteries and ComFit pressure cuff, software and usb cable. After connecting the cuff hose and the AC adaptor to the unit then quickly setting the date & time, the unit is ready for measurement! The unit pumps up the cuff with a small internal motor, about 10 mmHg per second to about 20 to 40 mmHg above the systolic value. Then it deflates, at about the same rate, giving a pressure reading of the cuff about one a second. The whole inflation and deflation process takes about half a minute; too fast to use a stethoscope and read off the values while listening for the Korotkoff (turbulence) sound. At the end of the measurement, the unit will display the systolic and diastolic values on a huge display, and store those values in the memory so that eventually it can be downloaded to a pc and plotted. One hundred readings can be stored for user A, and another hundred for user B, so the unit can accommodate two regular users, and unlimited guests (their readings not stored in memory). Taking more than 100 readings will overwrite the oldest stored data in the memory, therefore it is recommended to download the data regularly (every month or so).

To download the data, the unit is connected to a USB port in a similar fashion to a digital camera. Unlike a digital camera, however, you cannot see the BP monitor as a drive; but you can simply download its data and plot it with the software that came with it. The data can also be exported into a CSV file, which Excel or JMP can read. The headers of the download are the systolic and diastolic pressures, pulse, and heart beats irregularity numbers. Each measurement will be a line in this table. The software is not the highlight of the unit but adequate.

The unit uses the oscillometric method to measure blood pressure. In the oscillometric method, a cuff is inflated until the blood flow is completely cut off, then the cuff is slowly deflated. As the blood starts to flow during the partial restriction of the arteries, and then without restriction, the transducer connected to the cuff hose measures the oscillating pressure of the cuff. The unit computes the values for systolic and diastolic blood pressure from the pressure oscillations using a fit algorithm rather than from listening for the Korotkoff sound used in the auscoltatory method. The fit values are determined so that measurements match that of auscoltatory method, which is considered the golden standard. (The auscoltatory method uses a mercury column to measure the pressure of the cuff, and a stethoscope is used to listen to the Korotkoff sound as the blood flow goes from completely restricted to unrestricted.) Oscillometric methods may produce inaccurate reading for a variety of reasons such as for circulatory problems.

To assess the unit accuracy for repeatability, I took 30 consecutive measurements in groups of three. There was a rest time of 2 min between the groups and also the cuff was adjusted between the groups. There was a 30 sec rest time between each measurement within a group. I took the average of the 30 measurements for the systolic and then for the diastolic to be the true systolic and diastolic BP value; the deviation of each measurement from this average to be the repeatability error. The first observation was that the error did not have a trend, thus the BP measurement itself did not change the actual BP of the patient. Second, the errors were similar in groups of three, suggesting that the large part of the error was due to the position of the cuff. I found the largest deviation from the mean to be +-12 Hgmm for the systolic and +-7 mmHg for the diastolic, while majority of the error data was +-10 mmHg for the systolic and +-4mmHg for the diastolic . This error could be reduced to 2/3 of that, using the TruRead setting, which basically means that the unit takes three subsequent measurements and averages them out. The error could be further reduced by adjusting the cuff between each of the three measurements. In the language of statistics, I found that the one sigma repeatability error of the unit to be about 4 to 5 % for both systolic and diastolic values which can be reduced to 3 to 4% using TruRead.

I am speculating, that there is a cuff error regardless of measurement methodology, simply because depending on how a cuff is wrapped, it may need different amount of pressure just to conform it to the arm, before it can exert any pressure on the arm.

Significantly, the unit zeros itself at the start of each measurement, thus a rainy weather is not going to reduce BP readings, and conversely, the sunny weather is not going to raise it. The reading at Denver should also be the same as one at Half Moon Bay. I do not know if the PB of an individual is influenced by air pressure, but the reading should not be.

I also found that BP measurements, taken in a half an hour time frame at a doctor's office and later by this unit were within 9 mmHg. However, the measurement at the doctor's office were also taken with the oscillometric method, therefore I do not know with certainty where to assign this measurement discrepancy.

Based on this limited set of data, one unit, one size arm, one set of measurement, this unit seems to be a decent one that produced a fairly accurate reading. It can definitely resolve the regions of normal BP, borderline BP and various levels of high BP. It is light years ahead of similar PB measurement units produced in years past. It is true, that physicians have capability for a more accurate BP reading (if they take advantage of it) but they have access to far fewer readings. The unit's strength is that it can collect lots of BP readings, so statistics can compensate for the lack of absolute accuracy. From data collected on a regular bases, one might find trends that a physician might otherwise miss.

I do not have long term reliability / drift data on the unit, but it does come with a 5 year warranty. Based on this information and the unit's affordability, I would recommend this unit.

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