64mm Surface Mount Alarm Sensor

This 64 mm long magnetic contact sensor uses a sealed reed switch activated by a separate magnet (not included) to register door and window status changes. Its slim 10 mm profile and matte white surface minimise visual impact when mounted beside handles or hinges. Weighing under 15 g, it introduces negligible load on delicate window mechanisms. The sensor’s wiring terminals accept up to 0.5 mm² stranded core cable — compatible with standard UK alarm installation practices. NO/NC selection is made via an external jumper or physical switch depending on model variant, clearly marked for installer confidence. Designed for indoor use only; not rated for exterior exposure but suitable behind double-glazed units or sheltered porch areas.