Starting at $536.53
  • Usually ships in 3-4 weeks



  • Easily readable, robust digital display
  • Intuitive and fast setup
  • Easy and flexible mounting configurations
  • Flexibly configurable and scalable output signals
  • Ranges up to 7500 psi
  • Switching thresholds: switch point 1 and switch point 2 are individually adjustable
  • Switching functions: normally open, normally closed, window, hysteresis Freely adjustable
  • IO-Link is optionally available for all output signals
  • Zero offset adjustment: maximum 3% of span
  • Service life: 100 million switching cycles
  • Accuracy: ≤ ±0.5 % of span
  • Ingress protection: IP65 and IP67


The WIKA PSD-4 pressure switch combines outstanding design and functionality. With ranges to 7,500 psi, 0.5% accuracy, freely configurable output signals (PNP/NPN, 4-20mA / 0-10V), 5:1 scalability of the analog output, and outstanding self-diagnostics; the PSD-4 is an excellent automation solution.

The WIKA PSD-4 can be adapted to nearly any installation. The digital display can rotate up to 300° independently of the electrical connection, making it easy to adjust the unit to always face the operator. The M12 x 1 connection can also be positioned to suit the desired cable routing.

Understanding that pressure switches are often placed in rugged environments, the PSD-4 was features a robust design. The case and the threaded connection of the electrical connector are made from stainless steel so that over-winding or tearing off the connector is virtually impossible.

With the optional IO-Link communication standard, the PSD-4 electronic pressure switch allows a fast integration into modern automation systems. IO-Link offers simpler and faster installation, parameterization and higher functionality for the PSD-4.