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.
Learn Chemistry While Creating Sweet Treats
Learn how solar cells transform light into electrical energy with this great kit!
This glass Erlenmeyer mug makes an excellent gift!
Make the coolest 3D pin art on your desk with this amazing desk toy.
A combination of three of our great discovery toys, all in one package!
This kit includes several different projects that demonstrate the power of magnets!
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