Granville-Phillips unique Stabil-Ion gauges feature:

• All metal gauge tube means no glass breakage, glass decomposition, or helium permeation.
• Complete electrostatic shield and grounded metal gauge tube housing provides a stable electrical environment and shields against external electrical influences.
• Burnout resistant filaments.
• Precision-wound, stress-relieved grid retains shape even after high temperature degassing.
• Tensioned filaments remain in position over time, providing long-term repeatability.