An expansion set that will expand your Boffin 100 kit with additional components and 200 new projects, giving you a full-fledged Boffin 300 kit.

You can build projects:

Radio
Lie detector
Water alarm
Pressure gauge
Motion detector
Resistance meter
Sound wave
Laser
The basis of all projects is a board, onto which the individual components simply snap. The manual describes what the project should do and what to expect from it. After assembly, you can check if everything works.
You can combine individual components and projects with components and projects in other Boffin kits and come up with hundreds of other projects that are not described in the manual.