IGM400 Hornet™ Hot Cathode


The IGM400 Hornet is a hot cathode Bayard-Alpert ionization vacuum gauge module designed to work specifically with InstruTech’s B-RAX 3200 vacuum gauge controller. All display and control functions are performed remotely by the B-RAX 3200 or the FlexRax controller.

The pressure measurement range of the IGM400 is 1.00E-09 to 5.00E-02 Torr.

IGM400 is available with various fittings including NW16KF, NW25KF, NW40KF, 1 1/3 in. Mini-Conflat, 2 3/4 in. Conflat, 3/4 in. O.D. Tube (O-ring compression) and 1/2 in. Cajon 8VCR female.


  • Wide measurement range of 1.00E-09 to 5.00E-02 Torr
  • CE and RoHS compliant
  • Typical lead times of 5 to 7 days
  • Standard warranty of 18 months
IGM Hornet hot cathode