Demonstration Spherometer Subcategory_Weights and Masses Paired safety-socket outputs deliver two

Paired safety-socket outputs deliver two selectable ranges 0-70V and 0-125V DC at 300mA

6 armatures

the wider bore accepting full-size bar magnets while AC current drives the alternating field that rotates domains for demagnetization

Red LED on a demonstration base with 4mm plug connections

supplying an inert electrode that conducts current without contributing its own ions to the cell reaction

Demonstration Spherometer Subcategory_Weights and Masses Paired safety-socket outputs deliver twoDemonstration spherometer with an oversized 133 mm dial head and baked enamel finish, letting an entire classroom read spherometer values before students work with benchtop units.