A concise and thoroughly practical guide to building and installing car alarms. The project-based approach makes this book ideal for students and hobbyists; design and installation engineers will also find it of interest. Every circuit in this book is clearly described and illustrated, and contains components that are easy to source. Advice and guidance are based on real experience, and the designs themselves have been rigorously put to use on some of the most car-crime-ridden streets in the world. The designs in this book include systems as simple as a warning beacon, a range of immobilisers, and a basic alarm system; and more advanced systems that include add-on features such as a personal attack button and a courtesy light delay. Intruder detectors are described, and full constructional details are given including a guide to fault diagnosis and step-by-step installation instructions.