ABS Plastic magnetic contact for built-in assembly in metalic doors. Its provided with 4 wires cable of 2m. NC alarm and tamper contact. Maximum operational opening 12mm. IP67. Magnet Dimensions: 6 x 19 mm, contact: 8 x 32 mm. Necessay hole: 18.8mm Operational temperature: -25°C a +70°C. Security grade 3 certified.