Dwyer Instruments, Inc. has announced the release of the new Series ADPS adjustable differential pressure switch. The switch is designed for pressure, vacuum and differential pressures. The scaled adjustment knob allows changes to the switching pressure to be made without a pressure gage. The ADPS is available with settings from 0.08˝ W.C. (20 Pa) up to 16˝ W.C. (4000 Pa). The silicone diaphragm and PA 6.6 body make the series ADPS perfect for use with air and other noncombustible gases. The Series ADPS can be used in monitoring air filters, ventilators, and industrial cooling-air circuits along with controlling air and fire-protection flaps and many other applications.