The following images illustrate the activation systems used for VSG devices, broken down into:
- Automatic/manual activators with water-soluble system – UML MK5, UML PRO SENSOR ELITE, HALKEY ROBERTS ALPHA 9000 (Image 2).
- Manual-only activators – UML MINI MANUAL, UML MICRO MANUAL, UML PRO SENSOR ELITE, HALKEY ROBERTS Series 840 (Image 3).
- HAMMAR hydrostatic activator – automatic/manual (Image 4) and manual-only (Image 5).