PROOF PLANE 20mm DIA. SPHERICAL TYPE
- EM2521-001
The IEC Proof Plane is a classic tool for use in teaching electrostatics. It is used for accepting and transporting an electrostatic charge from one place to another.
It has either a flat disc EM2520-001 or a spherical EM2521-001 format.
It consists of a smooth disc or a sphere, about 20mm diameter, mounted on a very insulating handle about 150mm long.
