Category: Hot Cathode Module incl. Readout

IGM401 Hornet – Compact Hot Cathode Ionization Gauge Module

The IGM401 Hornet is a miniature Bayard-Alpert ionization vacuum gauge with a built-in controller and display, designed for general vacuum applications where precision and reliability matter.

Why Choose IGM401 Hornet?
✔ Compact, All-Metal Design – Rugged and field-replaceable assembly
✔ Dual Filament Options –
• Yttria-coated iridium for oxygen-rich processes
• Tungsten for halogen-containing environments
✔ Auto-Ranging Emission Current – Ensures optimal, stable pressure readings across the full range
✔ Drop-In Replacement – Plug-compatible with Granville-Phillips® 354 and 355 Micro-Ion® gauges at a lower cost

Technical Highlights:

• Pressure Range: 7 × 10⁻² mBar to 1 × 10⁻⁹ mBar
• Pressure Units: Torr / mBar / Pa
• Setpoint Accuracy (N₂):
  • 1.0 × 10⁻⁸ to 5 × 10⁻² Torr: ±15% of reading

Ideal for industrial vacuum systems, research labs, and high-precision applications, the IGM401 Hornet combines accuracy, durability, and ease of integration.