Pressure switch with visual scale – Type 681 & 682

The type 681 and 682 pressure switches are designed for applications where visual feedback is essential. The integrated scale on the housing allows installers or operators to precisely adjust the switching pressure without external measuring devices. This makes this series ideal for installations requiring quick calibration and visual inspection, such as compressed air installations, test benches, pneumatic systems, and dosing applications.

Both models feature a reed switch (SPST NO) as the contact element. Type 681 comes standard with a 1-meter PVC output cable, while type 682 is equipped with a DIN 43650-C connector with a 9.4 mm grid for easy and secure connection.

The switch housing is made of anodized aluminum with brass screw connections, creating a lightweight but sturdy construction. The scale markings are clearly visible through the transparent window in optical polycarbonate. For applications with limited installation space, a version with a 360° rotatable housing is also available on request, for maximum flexibility during installation.