MockP1: Pen-type readers are the most durable type BUT they need to come into physical contact with what they're reading to work

Question

Pen-type readers are the most durable type BUT they need to come into physical contact with what they're reading to work

Sozen · Accepted Answer

What type of barcode reader is the most durable and what is the drawback of it?

Pen-type readers are the most durable type BUT they need to come into physical contact with what they're reading to work