A&D LifeSource UA-420 Wide Range Blood Pressure Cuff
The UA-420 / UA-420A Wide Range is A&D Medical's single-cuff solution for users who fall anywhere between a standard Small and a standard Large arm size. With a fit range of 8.6 to 16.5 inches (22–42 cm), it eliminates the guesswork of choosing between Small, Medium, and Large cuffs — one cuff covers nearly the entire adult arm spectrum in a single purchase. It is compatible with most current A&D LifeSource monitors including the UA-611, UA-651, UA-651BLE, UA-651SAC, UA-660, UA-770BLE, UA-1020CEL, UA-1030T, UA-1030TBLE, UA-767F, and UA-767FAC. Like all A&D Medical cuffs, it is latex-free, features a durable Velcro fastener, conforms to the arm shape for consistent placement, and carries a 2-year manufacturer warranty. FSA/HSA eligible. If your monitor is the UA-789AC or you have a UA-705V/VL, see the standard replacement cuffs (UA-279, UA-280, UA-281, UA-282) — the UA-420A is not compatible with those models.
Our Take: The UA-420A is the right choice when you want a single cuff that covers most adults without needing to precisely determine Small, Medium, or Large. The 8.6–16.5 inch range handles the vast majority of adult arms in one purchase. It is also the go-to replacement cuff for households where multiple people share one monitor and have different arm sizes. It works with most current A&D monitors — see the compatibility table below to confirm yours. The one situation where it is not the answer is the UA-789AC, which needs the UA-282A XL cuff, or the UA-705V/VL manual inflate models, which use the UA-280 or UA-281. For arms below 8.6 inches, the UA-279 Small is needed.
Size & Pricing
How to Measure Your Arm
Why size matters: A cuff that is too large produces a reading lower than your actual blood pressure. A cuff that is too small produces a reading higher. The Wide Range cuff is designed to eliminate this problem for most adults by accommodating the full Small-through-Large arm spectrum in one cuff.
Need a cuff for a different size or monitor?
If your arm falls below 8.6 inches, or if your monitor is the UA-789AC or UA-705 series, use the standard replacement cuffs instead.
The XL (UA-282A) is compatible with the UA-789AC monitor only. Standard Small/Medium/Large cuffs cover a wider set of older and newer monitors.
Key product features
- Wide range fit — 8.6″ to 16.5″ (22–42 cm) covers Small, Medium, and most of Large in one cuff.
- Ideal for multi-user households — one cuff accommodates different arm sizes without switching cuffs between users.
- Broad monitor compatibility — works with most current A&D LifeSource automatic monitors (see compatibility table).
- Genuine OEM cuff — manufactured by A&D Medical, not third-party.
- Latex-free — safe for users with latex sensitivities or allergies.
- Durable Velcro fastener — secures reliably throughout the inflation/deflation cycle.
- Contoured fabric — conforms to the natural shape of the upper arm for consistent cuff placement.
- 2-year warranty — A&D Medical covers defects in materials and workmanship.
- FSA/HSA eligible — qualifies as a medical expense under IRS guidelines.
UA-420A Wide Range — Specifications
| Specification | Value |
|---|---|
| Model number | UA-420 / UA-420A |
| Cuff type | Wide Range — standard wrapped |
| Arm circumference (inches) | 8.6″ – 16.5″ |
| Arm circumference (cm) | 22 – 42 cm |
| Size coverage | Covers Small, Medium, and most of Large in one cuff |
| Compatible monitors | UA-611, UA-651, UA-651SAC, UA-651BLE, UA-660, UA-767F, UA-767FAC, UA-770BLE, UA-1020CEL, UA-1030T, UA-1030TBLE, UA-1040TBLE |
| Not compatible with | UA-789AC, UA-705V, UA-705VL |
| Latex-free | Yes — not made with natural rubber latex |
| Fastener | Durable Velcro hook-and-loop |
| Warranty | 2 years (manufacturing defects) |
| FSA/HSA eligible | Yes |
| Manufacturer | A&D Medical (A&D Company, Ltd.) |
| Price | $21.95 |
Monitor Compatibility Table — Does the UA-420A Work With My Monitor?
Find your monitor model number on the bottom or back of the unit. A ✓ in the UA-420A column confirms this cuff is compatible. For monitors marked ✗, use the standard replacement cuffs (UA-279 / UA-280 / UA-281 / UA-282).
| Monitor Model | Monitor Name | UA-420A Compatible |
Notes |
|---|---|---|---|
| UA-611 | Essential One Button Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-651 | Essential Blood Pressure Monitor — Wide Range Cuff | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-651SAC | Essential Blood Pressure Monitor — Small Cuff | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-651BLE | Deluxe Connected (Bluetooth) Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-660 | One Touch Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large, UA-372A Preformed |
| UA-705V | Advanced Manual Inflate — Medium Cuff | ✗ | Use UA-280 Medium or UA-281 Large |
| UA-705VL | Advanced Manual Inflate — Large Cuff | ✗ | Use UA-280 Medium or UA-281 Large |
| UA-767F | Premium Multi-User Blood Pressure Monitor | ✓ | Also accepts UA-290A Medium, UA-291A Large |
| UA-767FAC | Premium Multi-User Blood Pressure Monitor with AC Adapter | ✓ | Also accepts UA-290A Medium, UA-291A Large |
| UA-770BLE | Multi-User Bluetooth Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large, UA-372A Preformed |
| UA-789AC | Premium Upper Arm Monitor with Extra Large Cuff | ✗ | Use UA-280A Medium, UA-281A Large, or UA-282A XL |
| UA-810BLE | Precision Check Bluetooth Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large, UA-372A Preformed |
| UA-910BLE | Precision Check Pro Bluetooth Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large, UA-372A Preformed |
| UA-1020CEL | Cellular Enabled Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-1030T | Premium Blood Pressure Monitor with Verbal Assistance (Talking) | ✓ | Also accepts UA-392A SmoothFit, UA-289A Small, UA-290A Medium, UA-291A Large |
| UA-1030TBLE | Voice Guided Bluetooth Blood Pressure Monitor | ✓ | Also accepts UA-289A Small, UA-290A Medium, UA-291A Large, UA-372A Preformed |
| UA-1040TBLE | Voice Guided Bluetooth Blood Pressure Monitor | ✓ | Also accepts UA-289A, UA-290A, UA-291A, UA-372A |
Data sourced from the official A&D Medical accessories page. Your monitor model number is printed on the bottom of the unit. If your model is not listed or you need help confirming compatibility, contact us at sales@hrmusainc.com or call 1-800-403-8285.
Frequently Asked Questions
What monitors is the UA-420A Wide Range cuff compatible with?
The UA-420A is compatible with the following A&D Medical LifeSource monitors: UA-611, UA-651, UA-651SAC, UA-651BLE, UA-660, UA-767F, UA-767FAC, UA-770BLE, UA-810BLE, UA-910BLE, UA-1020CEL, UA-1030T, UA-1030TBLE, and UA-1040TBLE. It is not compatible with the UA-789AC, UA-705V, or UA-705VL. For those monitors, use the standard replacement cuffs (UA-279 Small / UA-280 Medium / UA-281 Large / UA-282 XL).
What is the difference between the UA-420A Wide Range cuff and the standard sized cuffs?
The UA-420A covers arm circumferences from 8.6 to 16.5 inches (22–42 cm) in a single cuff, spanning what would otherwise require a separate Small, Medium, or Large purchase. The standard sized cuffs — UA-279 Small (6.3–9.4″), UA-280 Medium (9.4–14.2″), and UA-281 Large (14.2–17.7″) — each cover a narrower range with a more tailored fit and are compatible with a wider set of monitors including older models. The Wide Range cuff is ideal when convenience or multi-user flexibility is the priority.
Will the UA-420A fit my arm?
The UA-420A fits upper arm circumferences of 8.6 to 16.5 inches (22–42 cm). To measure: let your arm hang relaxed at your side and wrap a flexible measuring tape around your upper arm at the midpoint between shoulder and elbow. If your measurement falls within this range, the UA-420A will fit. Arms below 8.6 inches require the UA-279 Small cuff. Arms above 16.5 inches require the UA-282A XL cuff (compatible with UA-789AC only).
Is the UA-420 the same as the UA-420A?
Yes. The UA-420 and UA-420A refer to the same Wide Range cuff. The "A" suffix on the UA-420A indicates the updated ISO-compliant connector standard. Both versions are compatible with the same monitors.
Is the UA-420A compatible with the UA-789AC?
No. The UA-789AC requires the UA-280A (Medium), UA-281A (Large), or UA-282A (XL) cuffs. The UA-420A Wide Range cuff is not compatible with the UA-789AC monitor.
Why might I choose a standard sized cuff over the Wide Range?
If your arm is squarely in the middle of a standard cuff's size range — for example, a 12-inch arm is centered in the Medium (9.4–14.2″) range — the dedicated Medium cuff will provide a slightly more tailored fit and potentially more consistent bladder positioning than the Wide Range. If your arm measurement is near the outer edges of the Wide Range (close to 8.6″ or 16.5″), a standard cuff sized for your arm may also be more appropriate. For most users, however, the Wide Range cuff produces equivalent readings and offers greater convenience.
Are these cuffs FSA/HSA eligible?
Yes. The UA-420A Wide Range replacement blood pressure cuff is FSA (Flexible Spending Account) and HSA (Health Savings Account) eligible as a qualified medical expense under IRS guidelines. Keep your receipt for reimbursement documentation.
What is the warranty on the UA-420A?
The UA-420A carries a 2-year manufacturer warranty from A&D Medical covering defects in materials and workmanship from the original purchase date. Normal wear and tear is not covered. Contact A&D Medical directly at 1-800-726-0502 or medical.andonline.com/warranty to initiate a warranty claim.
I can't find my monitor model in the table — what do I do?
Check the bottom or back of your blood pressure monitor for a label reading "Model:" followed by the model number. If your model doesn't appear above, email us at sales@hrmusainc.com or call 1-800-403-8285. You can also visit the official A&D Medical accessories page at medical.andonline.com for the most current compatibility information.
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We work hard to keep product and compatibility information accurate. If you spot an error or need help confirming compatibility with your specific monitor, email us at sales@hrmusainc.com — we appreciate it.