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Dr. Frei M-400A Digital Blood Pressure Monitor

Special Price £29.99 Regular Price £36.99 Save: £7.00 (19%)
Out of stock
Key Features
  1. Automatic upper arm blood pressure monitor
  2. Digital blood pressure monitor with clinically validated for arrhythmia detection
  3. Clinically accurate measurements
  4. Comes complete with soft storage bag
  5. Bright and easy to use touch buttons and LCD screen 
Dr Frei

Do you understand your blood pressure and why you should be keeping track of it with a digital blood pressure monitor?

Your blood pressure is the pressure of the blood in your circulatory system, often measured for diagnosis since it is closely related to the force and rate of the heartbeat and the diameter and elasticity of the arterial walls. If you suffer from high blood pressure then investing in a good blood pressure monitor will help you keep on track. You are likely to have high blood pressure (hypertension) if your blood pressure readings are consistently 140 over 90 or higher over a number of weeks, so monitoring it closely is of high importance. You may also have high blood pressure if just one of the numbers is higher than it should be over a number of weeks.

The Dr. Frei M-400A Digital Upper Arm Blood Pressure Monitor is a fully automatic digital blood-pressure measuring device for use on the upper arm. It enables very fast and reliable measurements of the systolic and diastolic blood-pressure as well as the pulse frequency by way of the oscillometric method of measuring.



Beneficial features to help you monitor your blood pressure levels with ease

Blood Pressure Icons

Blood Pressure Icons

Blood Pressure Icons

Blood Pressure Icons

Located on the left side in the display is the blood pressure indicator. Once your measurement has been processed a colour will be displayed in the bars on the left part of the display. Green signifies optimal blood pressure. Yellow signifies elevated and orange indicates it’s too high. Red indicates that it’s dangerously high. This function helps you to evaluate your results.

CAM technology – Clinically accurate measurements

The M-400A Digital Blood Pressure Monitor incorporates CAM technology meaning you can enjoy a level of accuracy which is second to none. It’s recommended by cardiologists that you always take several measurements and calculate your average value. The device in the CAM mode automatically takes 2 measurements in succession, analyses the results and displays the ready values. What could be easier?

Advanced irregular heartbeat detection

Your Dr. Frei M-400A Digital Blood Pressure Monitor indicates an allorhythmic heartbeat. If the symbol of IHB Advanced appears on the display it’s indicating that abnormality in heart beat frequency was detected during the measurement. In this case, the result may deviate from your normal blood pressure - repeat the measurement.

Simple to use, the technology of the Dr. Frei M-400A Digital Blood Pressure Monitor ensures blood pressure monitoring couldn’t be easier. 

More Information
BrandDr Frei
Recommended ForMeasuring and monitoring blood pressure
Included ContentsMonitor, cuff, storage bag and instructions
Power4 x AAA batteries (included)
User ManualView and/or Download the User Manual
FunctionStores up to 90 memories, alarm feature
SizeCuff adjusts from 22 - 38 cm (8.5 - 15 inches)


Royal Mail 48 - 3-5 working days (Free Over £55) £3.99
Royal Mail 24 - 95% arrive next day (Including Saturday) £5.99
DPD - Choose Your Day - Guaranteed nominated day delivery (Monday - Sunday) £7.99
Royal Mail Special Delivery By 1pm - Next day guaranteed by 1pm (Including Saturday) £7.99
Royal Mail Special Delivery By 9am - Next day guaranteed by 9am (Including Saturday) £17.99
International Delivery from £8.99

Same Day Dispatch

Order before 11:30am Monday to Friday and your order will be dispatched the very same day.

Discreet Packaging

As some of our products are of an intimate nature. Rest assured that no one, other than you, will know what is contained in your delivery. We use plain brown, unbranded, boxes. Keeping the contents secure and private.

Free Returns

If you're not 100% happy with your purchase and you have not opened or used any of the intimate products, and everything is in an un-opened, re-saleable condition, you can return them for FREE within 14 days of delivery to get a full refund. If not faulty, for hygiene reasons some items such as pillows, bedding and underwear etc. cannot be returned unless it is faulty, you can find the full list of excluded products here.
Speak to our Customer Care team if you have any questions.

Our Experts Are Here to Help

If you have any questions about our products, please pick up the phone and speak to a member of our Customer Care team. Our team have over 10 years of customer service experience, helping you make the best decision when it comes to your health.

Call us on 01482 496 931. Our Customer Care line is open 8.00am - 6.00pm GMT, Monday to Friday, 9.00am - 5.00pm GMT, Saturday.

If phone calls aren't for you, visit our contact us page to use our contact us form, email or live chat which is also available on our website 8.00am - 6.00pm GMT, Monday to Friday, 9.00am - 3.00pm GMT, Saturday.

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We Are Environmentally Friendly

The cardboard boxes we use to deliver your goods are made of over 70% recycled materials, the rest is made from pure Kraft from managed sources. Please recycle our packaging to continue the cycle.

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