Please update your browser.

It looks like you are using an old version of the Microsoft Edge browser. To get the best experience with the Busch website, please update your browser.


Piezoresistive and Pirani


The digital transmitter DPP 400 is the latest generation of micro-controller-based vacuum gauges combining a piezoresistive sensor with a robust spiral coil filament Pirani to provide a full and accurate range of pressure measurement from 1200 to 1∙10⁻⁴ mbar.

Your Benefits at a Glance

  • Gas type independent measurement in high pressure range
  • Protected and robust spiral coil filament Pirani
  • Fully customizable parameters and output signal for easy integration
  • Optional display version (DPP 400 D)
  • 0 – 10 V signal and RS485 interface
  • Bake-out up to 150°C without electronics removal
  • 2 setpoint relays as standard
  • Plug and play sensor replacement