This handy digital tachometer measures the working speed of an engine (especially in a road vehicle) in revolutions per minute (RPM) via laser. The meter ranges from 2.5 - 99,999 RPMs. Perfect for use around the house or in the garage, and great for obtaining precise measurements on engines in classroom experiments. Displays to the tenth decimal.
This ultimate chemistry set features 250 mind-boggling experiments!
Learn Chemistry While Creating Sweet Treats
Build a robot that's an artist too!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
A cool kit that helps you build your very own robotic arm!
Build your very own smart robot!