---
title: How Do Vending Machines Detect Fake Coins? — HIGH T3CH
url: https://hight3ch.com/how-do-vending-machines-detect-fake-coins/
date: 2016-04-23
---

# How Do Vending Machines Detect Fake Coins?

This machine can decipher coins with pinpoint accuracy. Light sensors measure the size while electromagnets detect the metal type of the coin.