WGM701 Wasp™ Cold Cathode Pirani



WGM701 Wasp is InstruTech’s full range vacuum gauge module which combines an inverted magnetron cold cathode with a pirani vacuum gauge sensor in a single device to provide pressure measurements from 7.60E-10 Torr to atmosphere. The pirani sensor is used to measure the pressure from atmosphere to 7.60E-03 Torr. The cold cathode sensor is then automatically activated and takes over the pressure measurements down to 7.60E-10 Torr.

WGM701 is available with various fittings including NW25KF, NW40KF and 2 3/4 in. Conflat.


  • Full range measurement of 7.60E-10 to 760 Torr
  • Built-in controller
  • Ultra-low magnetic stray field
  • Compact small foot-print
  • Low maintenance replaceable insert
  • Reliable fast sensor activation
  • Log-linear analog output and digital input control
  • CE and RoHS compliant
  • Standard warranty of 2 years

WGM701 does not require a controller to operate. It provides an analog output signal that can be directly interfaced with user’s control system. You may consider using the AGC302 controller for panel or rack mount display installation and/or when setpoint relays and serial communications is required.