Recessed magnetic contact, for steel doors. Contact NC. Cable length 2 m. Tamper loop included. Recessed under pressure. Housing with special separation to avoid magnetic attenuation. Size: contact ø 1.91 x 2.86 cm, magnet ø 1.91 x 3.97 cm. Maximum distance 9 mm in steel. Sale in packs of 10 units, the price is per unit.