How can someone get a PERS unit?

Is this the button? There r a number of companies that provide these. They now have were you don't have to stay in the house for them to work. I paid about $50 a month for one that detected falls. That was over a year ago. You should be able to find companies online. I used Phillips.

Some Medicare Part C programs will pay for them. And some Medicaid Waiver programs will pay for them.

I would call your local Area Agency on Aging and see what they know about it.