Home Security: Alarms, Sensors and Systems

As well as describing the bewildering range of security devices on offer, more technical readers may consider their own solutions using descriptions and circuits for two simple tested designs are given, one for the home and one for a foolproof public hall system. There is a plethora of security devices now on offer. Large sums can be spent on elaborate systems, yet weak links can be left unrecognised - except by the housebreaker! Good independent advice is scarce, as most security firms favour their own products. This book explains the pros and cons of alarm systems, including how to avoid faults, and find them if they occur. Friendly security' is particularly featured, and other security devices are given a critical scrutiny. Explains simply and in straightforward language how to select and install systemsDescribes range of security devices on offerExplains pros and cons of alarm systems and how to avoid faults