Push Button Switch Demonstrator with 4mm Terminals Material_Porcelain and pins outfit groups for

and pins outfit groups for hands-on study of pinhole imaging

this universal charger keeps portable instruments running between sessions without rotating in fresh disposable batteries

Single-channel aluminum 1-meter bench with engraved graduations and leveling-screw feet

Pea seed germination model traces cotyledon splitting

sized for the student electrolyzer to study electroplating

Push Button Switch Demonstrator with 4mm Terminals Material_Porcelain and pins outfit groups forMomentary contact push button switch on a base with two 4mm terminals, snapping closed only while the button is held to introduce momentary versus latched switching behavior.