Clear Interchangeable Dial for Demonstration Meter Material_PVC 5-inch funnels and adjusts up

5-inch funnels and adjusts up to 17 inches in height for the chemistry bench

and chemistry heating applications

and a six-turn thick coil for hands-on Lenz's law and induction-heating work

this 75mm metal-framed apparatus demonstrates thin-film interference and the wave nature of light

letting students watch the wire travel along the rail as roughly 3A of current crosses the magnetic field

Clear Interchangeable Dial for Demonstration Meter Material_PVC 5-inch funnels and adjusts upUsed in laboratory apparatus that needs interchangeable rotary scale indicators, this clear dial provides a readable face for measuring angular displacement in physics setups.