75-in-1 Electronic Project Lab

Product Description

No soldering - uses spring hook-up method. Learn basic principles of electricity, electronics, physics and magnetism! Everything you need to build: timer buzzer, sound alarm, burglar alarm, photo-level alarm, logic tester, electronic coin toss, motion LED, electronic organ, motion detector, first-aid siren, pulse width modulation, water level alarm, sound level meter, DC to DC converter, sound-sensor timer, four-level photometer, two stage timer sound, voltage detector, conductivity tester, optical volume and many more! Easy-to-read, illustrated, lab-style manual included. Requires four (4) 'AA' batteries. Ages 10 & up.