15V DC Interchangeable Dial for Demonstration Meter Lab Equipment_Lab Burners this bare Eureka constantan wire

this bare Eureka constantan wire takes advantage of the alloy's low temperature coefficient

the moderate curvature spreading light gently for divergence and virtual-image-formation work in refraction demos

producing the nearly uniform field used to calibrate magnetic sensors and verify the Helmholtz geometry

but is an ideal choice for science classrooms and household use

sized for the medium-pitch terminal screws on bench supplies

15V DC Interchangeable Dial for Demonstration Meter Lab Equipment_Lab Burners this bare Eureka constantan wireFifteen volt DC scale on a 315x115mm laminated panel with sealed multiplier, sized for stacked battery measurements when the demonstration meter is used at the higher voltmeter range.