The proof plane is used to transfer electrostaic charge from one body to another. A spherical shape is used because this geometry holds the greatest charge and retains it for the longest time.
Sphere:Ø 3.5cm length: 18cm.
Wabash Model #N-135.
Forensics Lab Supply Number 3178135.
Purchase orders may be sent by email to Staff @ grauhall.com or by mail to 8524 Erinbrook Way, Sacramento, CA 95826.
All products shipped from Wabash, Indiana.