Health Hub · Heart health

Home Blood Pressure Monitors: How to Choose One and Take Accurate Readings

By the Lyng Pharmacy team · Clinically reviewed by Jeetender Singh Sahota, Superintendent Pharmacist (GPhC 2048691) · Updated August 2026 · 2 min read

Checking your blood pressure at home is one of the most useful habits you can build if you have — or are at risk of — high blood pressure. Home readings remove the 'white coat' effect, show how your pressure behaves across normal days, and give your pharmacist or GP far better information to work with.

But the monitor matters, and so does technique. Here's how to get both right.

Choosing a monitor

Choose an upper-arm cuff monitor that's been clinically validated — wrist and finger devices are far less reliable. Check the cuff size fits your arm; a too-small cuff reads falsely high. At Lyng Pharmacy we stock a clinically validated upper-arm monitor for £45 as a one-off cost, and we set it up with you in store so your first readings are done properly.

How to take an accurate reading

Sit quietly for five minutes first, feet flat on the floor, back supported. Rest your arm on a table at heart height, cuff on bare skin. Don't talk during the reading. Avoid caffeine, smoking and exercise for 30 minutes beforehand, and empty your bladder.

Take two readings a minute apart, morning and evening, for at least four days (ideally seven) — then average everything except day one. That average is the number that matters, not any single reading.

What home readings mean

Home readings run a little lower than clinic ones, so the threshold for high blood pressure at home is an average of 135/85 rather than 140/90. Below 120/75 at home is ideal for most adults. If your average is high — or a single reading is 180/120 or above — bring your numbers to us or your GP promptly; with a diary of readings, decisions get made faster and better.

Reserve a validated monitor — £45 at Lyng Pharmacy

1 Lyng Lane, West Bromwich B70 7RW · Mon–Fri 8:30am–6pm, Sat 9am–1pm · 0121 500 5756

Reserve a validated monitor — £45 →

Frequently asked questions

Which blood pressure monitor should I buy?
A clinically validated upper-arm monitor. Lyng Pharmacy stocks one for £45 and demonstrates it with you in store so your readings are accurate from day one.
When is the best time to check blood pressure at home?
Morning and evening, before medication and food, after five minutes of sitting quietly. Take two readings a minute apart and record both.
What is a normal home blood pressure reading?
A home average below 135/85mmHg. Home readings run slightly lower than clinic readings, so the thresholds differ.

Related reading

Where to Get a Blood Pressure Check in West Bromwich (Free & Same Day) →24-Hour Blood Pressure Monitoring (ABPM) Explained — And Where to Get It →All health articles →
0121 500 5756