Man kan enkelt gjøre om smarttelefonen sin til en metallsøker. Sjekk ut videoen og linkene her:
https://itunes.apple.com/us/app/metal-detector-free/id333259405?mt=8
https://itunes.apple.com/us/app/metal-detector/id409682366?mt=8
http://www.cnet.com/how-to/how-to-turn-your-android-phone-into-a-metal-detector/
https://play.google.com/store/apps/details?id=kr.sira.metal
https://play.google.com/store/apps/details?id=com.imkurt.metaldetector
https://procollector.no/produkt/xp-deus-metallsoker/ XP DEUS
http://www.redmondpie.com/metal-sniffer-is-hands-down-the-best-metal-detector-app-for-android/