Best sensor to detect a coin through a slot

inductive slot sensor   Dan koncert valdemar slot

I bet the slot is larger than 25 My preference for the sensors would be the slide by method You'll never see an industrial grade machine

Inductive Sensors - PNP vs NPN - vs  Pepperl+Fuchs SJ3,5-SN Inductive slot sensor mm slot width Usable up to SIL 3 acc to IEC 61508 Extended temperature range Ferrous targets

slot apps uk slot for supplying the lower layer is smaller than the width of the slot for SENSOR 28 36 30 EDDY Slotted proximity sensors consist of a two coil system sensing across the slot opening If a piece of metal is inserted into the slot sensor, the inductive