Mount across a path or doorway. When a person or object breaks the beam the loudspeaker will sound. •Kit includes PCB, LDR, speaker and all components. •12VDC power required.
| category_l3 | Educational |
| category_map_id | 1267 |
| price_exc | 20.95 |
| in_stock | 1 |
| lead_note | Available |
| source_updated_at_snapshot | 2026-10-26T00:00:39.155570 |