@fletch49er @davidho the car alarm sounding is a car specific feature.

The model displayed in the OP's top post is not what I'd consider a good robust design, and I see that the example is generating a lot of valid criticisms.

The arrangement like that used by the Flo network is designed such that the cable belongs to the pole. You don't use your own personal cable. You unlock the cable from the poke with your own charging app and get billed to your account. When done return the cable plug to the pole which locks it up.

flo.com/en-ca/products/hardwar

There's a 1000 words worth of description....