Detectorsdevicesdetonatorsforpostalshipments The systemsSecurSCANScanmailandLetterbombdevicesaredesigned fornon-destructive testingofpackages,envelopesand small packages.Theirbest useisfor checkingincoming mailin search of possibleletter bombsorpotentially dangerous itemssuch asrazor bladesorcutters.Thedetection of anyparcelbombtakes place via therecognition ofexplosivedevicesof whichthe sameare provided.