An optical shock sensor 22 which includes a light generator 40 adapted to generate light 46 and a light detector 44 which are an optical communication by means of a moveable hemispheric dome 48. Specifically, an intrusion, tampering, motion, and/or shock, applied to vehicle 11, causes the moveable dome...http://www.google.com.au/patents/US6043734?utm_source=gb-gplus-sharePatent US6043734 - Optical shock sensor
