Interchangeable Dial for Demonstration Meter, Model C Subcategory_Sensors and Probes the flywheel light enough to

the flywheel light enough to drive by breath for hands-on reciprocating-engine study

converting solar radiation to measurable thermal energy on an 18-inch-tall stand

clamping to bench edges for pulley experiments that need a fixed overhang off the worktop

deflecting visibly in the presence of a charged object to reveal both charge presence and polarity

providing the gold-standard inert electrode pair for electrolysis experiments where electrode degradation must be eliminated

Interchangeable Dial for Demonstration Meter, Model C Subcategory_Sensors and Probes the flywheel light enough toHundred milliamp DC scale on a 315x115mm laminated panel with sealed shunt, dropping into the demonstration meter to convert it into a 0 100mA ammeter for medium current student circuits.