The MC300-S31W is a pair of snap-in mounting collars. They are used to facilitate the mounting of magnetic reed switches in window and door frames.; Compatibilitate: MC340, MC346, MC347, MC370 ; Dimensiuni: Ø 22.8 (cu flanșă) x 20 mm Ø 18.6 (fără guler) x 19.2 mm ; Greutate: 0.008 kg ;