Understanding and Servicing Alarm Systems by H. William Trimmer | Comprehensive Guide for Home & Business Security (1999) | DIY Installation & Troubleshooting Tips

Understanding and Servicing Alarm Systems, Third Edition has seen the alarm industry enter the computer age. With its coverage of microcomputerized controls, sophisticated detection devices, methods of alarm reporting, that second edition broke new ground. Now completely updated to reflect the security industry's most high-tech advances, the third edition of Understanding and Servicing Alarm Systems, continues on the road of educating the alarm dealer, installer, and technician.