Interchangeable Dial for Demonstration Meter, Model E

This interchangeable dial is designed for use with the Demonstration Meter Interscale. It consists of a laminated plastic panel measuring 315 x 115 mm with a sealed molded box containing the shunt or voltage multiplier appropriate to the scale. This particular dial has a range of 0 to 10 A for DC current input. The self-contained design allows quick interchange between different measurement ranges on the demonstration meter, making it a practical accessory for physics classroom demonstrations of electrical measurement.