Compact A Series pressure switches feature all-316-stainless-steel construction in weatherproof IP67 enclosure. Precision snap-acting microswitches are fully encased to prevent contact corrosion. SPDT or DPDT switching -- setpoint may be factory set or field adjustable. Pressure ranges: vacuum to 7500 psi. Operating temperature range: -40°C to 100°C. Depending on range, units incorporate diaphragm-sealed piston design or direct-acting piston design sealed with a Buna-N or Viton O-ring. Switches are CE and ROHS compliant; and offered in UL- and CSA-listed, and CRN models.