: Sound-activated and motion-activated camera triggers.
: Phone number decoders, "spammer jammers," and voice changers.
: The second edition also focuses on privacy, teaching users how to detect and disable snooping devices. Sample Projects The book is divided into several thematic parts: 101 Spy Gadgets for the Evil Genius
: Portable alarm systems and camera flash tasers. Product Information 101 Spy Gadgets for the Evil Genius - Amazon.in
: Most projects can be constructed for roughly $30 or less . : Sound-activated and motion-activated camera triggers
is a DIY project book by Brad Graham and Kathy McGowan , published by McGraw-Hill TAB . It provides step-by-step instructions for building functional espionage tools—such as night vision viewers, hidden cameras, and phone voice changers—using inexpensive, easily obtainable electronic components. Core Features & Content
: Each project includes a complete parts list, required tools, numerous illustrations, and assembly instructions. Sample Projects The book is divided into several
: Laser spy devices and remote control hijackers.