Meggitt Sensing Systems’ Endevco 8507C rugged, miniature piezoresistive pressure transducers, as well as its range of acoustic microphones, support the requirements of hypersonic, transonic, and "quiet flow" wind tunnel testing; turbulent airflow measurements; and other high-intensity aerodynamic testing. The devices feature low-pressure offerings of 1, 2, 5, and15 psig ranges with a 300-mV full-scale output and up to 20X minimum burst pressure (1 and 2 psig versions). Series transducer output is said to be three times that of industry pressure transducers at comparable ranges. The transducer features an active four-arm strain gauge bridge, diffused into a sculptured silicon diaphragm, for maximum sensitivity and wideband frequency response. In addition, the firm’s Endevco prepolarized condenser measurement microphones, in free-field, pressure, low-cost array, and random incidence types, may be purchased as standalone units or in precalibrated 0.25-in and 0.5-in microphone and low-noise preamplifier combinations with iTEDS onboard memory storage.