Dual-Range Moving Coil DC Voltmeter, 0-5V / 0-15V Material_Mesh sized to power multiple bench

sized to power multiple bench instruments off a single wall outlet

anchoring magnet-strength comparison work across the horseshoe series

letting students rearrange bars to convert between series and parallel topologies on the same set of lamps

and 0-300V on a single inclined-face instrument

Single B22 bayonet lamp holder on a hard plastic base with two 4mm banana terminals

Dual-Range Moving Coil DC Voltmeter, 0-5V / 0-15V Material_Mesh sized to power multiple benchDual range 0 5V and 0 15V moving coil DC voltmeter at plus or minus 2. 5% accuracy with an inclined face, letting students read both small cell and battery stack voltages on a single instrument.