"serv Dial Sud & sars"

Compact, 2-in-1 field tool and weather instrument.

Easy to Read

With effective scale lengths of nearly nine inches, rotary scales offer greater accuracy than linear scales.

This working meter can be used to demonstrate the working principle of AC or DC ammeters and voltmeters with the interchangeable plastic scales, available separately.

Full-sized and fully enclosed, these meters are economically priced and offer ±2.5% accuracy.

This simple apparatus demonstrates radiant heat.

Visualize acceleration and centripetal force with this unique device.

Present a Wide Variety of Standard Force and Motion Activities.

Everything You Need to Demonstrate Optical Principles

Aluminum spring scales, built to last in any lab.

Instantly transform potential energy into kinetic energy.

Show your students how the rate of acceleration of an object depends on the angle of incline with this great hands-on activity.

What Happens When You Combine All Colors of Light?

Clear, Short Prisms for Index of Refraction and Dispersion

Good quality, enameled cast iron tripods for supporting small objects over a burner.

Learn how sunglasses work!