Motion Detector Kit

This kit comes complete with all parts, PC board, case schematic, and extensive training manual. It also includes an infrared detector, 3 integrated circuits, 16 resistors, 8 capacitors, 2 diodes, a switch, a speaker, a battery snap and cabinet parts. You can learn the basics of motion detector technology and have fun building this simple project. This battery operated kit adds safety to your home and office(can be used as a Sentry, Burglar Alarm, Movement sensor). The block diagram includes, Power Supply, Infrared Detector, Operational Amplifers & Filters, and a Tone Generator. It has a very good manual explaining its operation and theory. It gives many application examples.

This state-of-the-art Photoelectric Counter has many applications in business, industry and security. It can be used to count just about anything, from cartons on a conveyor belt, copies on a printer to people moving through a doorway. It is completely silent and has no moving parts. You can make money building these and selling them to stores and companies. Easy to build and maintain. Comes with complete instructions along with drilled and etched circuit board.

How would you like to push a solid ball through a solid cup - and make a ball magically travel from one place to another in the blink of an eye for good measure? With Cups & Balls, you can! This classic trick is simple enough for beginners to perform, but its results will wow even the most sophisticated audiences.

Here's a kit that's not only tons of fun for everyone, but useful too! This low cost microwave radar uses the same principle found in police units costing thousands more. You'll turn heads when you clock cars, planes, runners, boats, horses, bikes, races or virtually anything that moves. Speed readout is on two LED displays which can be set accurately (better than 1%) to show MPH, kilometers-per-hour, or even feet-per-second.

Build this high-tech, see-thru plastic telephone. Learn theory on how telephones work and then proudly show off your work with the transparent phone case. The set includes automatic redial, ringer turn off switch, 4 neon bulbs for visual indication of telephone working, and wall mounting cradle. The sectionalized construction and testing makes this fun and interesting project.