I do home BP readings with a sensor on the same arm, but don’t have the cuff cover the sensor. I think you should just ask them when they fit it to be sure.
You can tell them what arm you want them to use so you can simply have it on the arm without the sensor.
And with normal BP taking at the hospital they take mine over my sensor without an issue, so I expect you could even use the arm with the sensor.
Good luck with the monitor, it's very annoying and uncomfortable to have it squeeze your arm all the time. But I have some sensory issues so hopefully you'll do better than I did!