A paper currency collection detection arrangement used in an automatic vending machine formed of a paper currency receiving unit, a paper currency collection cabinet, and a detection unit. Each terminal has a contacting portion, a mating portion, and a mounting portion. A system includes a pipe and a tracer; HTC; and a heat transfer element having curved mounting surfaces configured to mate with an outer surface of the pipe and attached thereto via the HTC, and a channel in which the tracer is received and secured via HTC.