Interchangeable Dial for Demonstration Meter, Model D Subcategory_Lab Equipment Sets where colored liquid in a

where colored liquid in a U-shaped section shifts measurably as air blown through a constricted glass tube creates pressure differences

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Stackable 4mm lead with nickel-plated split-hollow pins on both ends

Twenty-six-SWG bare constantan wire on a 125g reel at 0

Extending up to 65 feet from a 20cm closed height on the included wooden stand

Interchangeable Dial for Demonstration Meter, Model D Subcategory_Lab Equipment Sets where colored liquid in aOne amp DC scale on a 315x115mm laminated panel with sealed shunt, sized to reconfigure the demonstration meter as a 0 1A ammeter for full class viewing of student built circuit currents.