Can anyone recommend a roll on scale for someone in a power chair?

Digital readout is fine. I just saw one that was connected to a cell phone app or something?

Try going to a commercial scale. Our local dump has the trucks drive on to the scale as they enter then again as they exit. That might work but it is like to be digital.

Not the digital kind? What, you mean an old-fashioned shift-the-weight-along-the-top bar sort that they used to use in medical settings? I think you'll have a job finding one of those.

But there do seem to be several models that you can roll a chair onto, just not one without a digital readout that I can see.