MK K4841 WHI 1g Architrave Switch

MK-K4841-WHI-Single-Gang-Architrave-Switch-MK-K4841-WHI-p-White-architrave-single-gang-switch-from-the-MK-Logic-Plus-Series-ideal-for-fitting-to-door-frames-and-for-other-uses-where-space-is-at-a-premium-This-switch-can-be-wired-as-either-1-way-or-2-way-p-MK-K4841-WHI-1g-Architrave-Switch

Price: 7.10 from Rapid Online Rapid Electronics Ltd.