Whilst the Omron Blood Pressure Monitor comes with a two year warranty, extended to four years if you register your device online with Omron on the following link Register for your Omron Product Warranty, the cuff of the device has a shorter warranty period. For most models, the warranty coverage for the arm or wrist cuff is one year. 

Cuffs will need to be periodically replaced throughout the life of the monitor. When purchasing a replacement cuff for an upper arm unit please be certain to measure the circumference of your arm to purchase the correct cuff size.