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Which cuff for Omron BP762 Blood Pressure Meter
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tom66:
Do be aware that the function of a blood-pressure meter is very specifically centred around measuring a minute change in pressure during the 'discharge phase'.  That's how the systolic and diastolic pressures are measured [1].  Changing the cuff could change the system performance and make the measurement less accurate or provide completely misleading readings,  you are talking about minute changes at the pressure sensor compared to the pressure of the cuff itself. 

Medical devices, smoke detectors, etc. are just the type of products you don't fiddle with and try to fix because the potential cost of failure is very large and you certainly don't have the equipment to calibrate these instruments.  (Did you know just removing the case from an optical smoke detector can change its sensitivity;  I did not until I measured it in an EN14604 compliant test tunnel.)

[1] https://www.hindawi.com/journals/jhe/2017/9128745/  figure 1 showing conventional method.  (Isn't it remarkable such a device can be shipped to your door for $30?)
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