10mA DC Interchangeable Dial for Demonstration Meter Material_Polypropylene Primary and secondary copper coils

Primary and secondary copper coils with a sliding iron core and 4mm terminals

gripping square or round rods up to 16 mm and accommodating flat articles like rulers and drawing boards

and 0-500mV at plus-or-minus 2

Designed for parallel gravity filtration

sized to span single-cell up through stacked-battery voltages on a single classroom instrument

10mA DC Interchangeable Dial for Demonstration Meter Material_Polypropylene Primary and secondary copper coilsUsed to reconfigure the demonstration meter as a 0 10mA AC ammeter, this 315x115mm laminated panel carries the appropriate shunt sealed in its molded box on the back of the scale.