0-5V DC Moving Coil Voltmeter Category_Demonstrations Heavy-duty reed switch on a

Heavy-duty reed switch on a demonstration base with 4mm plug connections

Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes

letting students trace renewable-energy conversion step by step

One-inch brass ball that threads onto a pendulum string as a heavier metal counterpart to aluminum or steel balls in mass-dependent periodic-motion investigations

6oz each in a 4-pack for chemistry-themed home entertaining and science enthusiast gifting

0-5V DC Moving Coil Voltmeter Category_Demonstrations Heavy-duty reed switch on aFive volt moving coil DC voltmeter at plus or minus 2. 5% accuracy in a fully enclosed plastic case, sized to read single cell and small battery pack voltages without scale overshoot risk.