A line of miniature differential pressure gauges provides an economical alternative to full-size models. The units are suitable for direct mounting on filters, pumps, tanks, hydraulic systems, fluid lines, and similar equipment. These compact, lightweight gauges and switches are particularly well suited for OEM production applications. Although small, the gauges are rugged — milled from solid aluminum blocks — so they can handle line pressures up to 3,000 psig. Differential pressure ranges are selectable from 0-25 in. H₂O to 0-100 psid with full-scale accuracies of 5 percent. Like full-size differential pressure gauges, these miniature units are available with both piston and diaphragm sensors. Switch models allow users to activate alarms or control processes at predetermined set points.