... Cobalt amorphous strip 2.Compatible with 3M,Certus,Dialoc, Checkpoint ,Gateway system 5''Single side EM security strip 125x4mm Single side strip ,25mm ... which have a better De/Reactivate effect. 2. our security strip compatible with 3M ,Certus , Dialoc , Checkpoint , Gateway and our own system ... Performance. 6. Use conveniently . 7. Good concealment. 5'' single side EM security strip