Door / Window Magnetic Sensor Door / Window Magnetic Sensor MAGNETIC CONTACT 2 WIREDESCRIPTION:Opening Gap 12-15mm, Epoxy Based Filling. ABS Housing.FEATURES:Opening Gap 12-15mmEpoxy Based FillingABS HousingAPPLICATIONS: Homes | Retails | Banks & ATMs | Offices | Schools | Warehouses | Hospitals | Industries