The PSD-4 electronic pressure switch (photo) is a universal solution for industrial automation tasks. Thanks to EHEDG and 3-A certification, the pressure switch is also suitable for industries with high hygienic requirements. Due to an accuracy of less than±0.5% and minimal long-term drift, it permanently ensures an accurate representation of the process pressure for more than 100 million load cycles. The pressure switch is available with a digital output signal, as well as a switchable and scalable analog output. In addition, it can also be easily monitored via the self-diagnostics. — WIKA Alexander Wiegand SE & Co. KG, Klingenberg, Germany