Table of Contents
Chapter 1: Security system basics
Electronic security system basics
Chapter 2: Contact-operated security circuits
Bell and relay-output circuits
Self-latching siren-sound generator circuits
Chapter 3: Optoelectronic security circuits
‘Visible-light-level’ circuits
PIR movement-detecting systems
Chapter 4: Anti-burglary security circuits
Practical burglar alarm circuits
Chapter 5: Temperature-sensitive security circuits
Thermostat fire-alarm circuits
Over-temperature security circuits
Under-temperature security circuits
Miscellaneous temperature switches
Precision temperature sensor ICs
Chapter 6: Instrumentation security circuits
A led ‘flasher’ output circuit
Chapter 7: Automobile security circuits
Practical immobilizer circuits
Low-fuel-level/engine-overheat alarms
Chapter 8: Miscellaneous security circuits
Liquid- and steam-activated circuits
A sound-activated switch circuit
A proximity-activated ‘alarm’ circuit