Short Brass cylindrical magnetic contact. Recessed installation on doors and windows. Supplied with cable 30cm no sheath. Technical features: · High mechanical strength; · Installation of frames of any non-ferromagnetic materials: aluminum, wood, etc; · Pressure Installation on the frame with hole 8 mm; · Connection wires, NC contact with near magnet, tamper loop; · Maximum closure Distance (not iron) 12mm; · Contact Size (LxD): 26x10mm, magnet (LxD): 18x10mm. IP65.