The AMS-37 Series Industrial Magnetic Contact is a UL Listed magnetic contact built for rugged environments and practically any opening. It is designed to provide clean and quick installations. The AMS-37 Series can be used to protect openings such as: man doors, overhead doors, roof hatches, or hinged skylights.General InformationName: Amseco AMS-37LG Magnetic Contact, Potter Electric Signal, LLC, AmsecoCategory: Amseco / Potter, Intrusion & Smart Home, Intrusion Contacts, Surface Mount ContactsUPC Code: 791438200628Country of origin: Korea. Country of origin is subject to change.