Preston Pressure LLC

Preston Pressure LLC

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Digital pitot-static tester

Product From Preston Pressure LLC

The PS-525 digital pitot-static tester is designed and priced for non-RVSM aircraft. Two versions are available, for 35,000 and 50,000 feet. Airspeed is displayed up to 500 knots. Features include electric pumps, altitude encoder reader, and annual calibration. It is portable, with internal re-chargeable batteries. For more information visit www.prestonpressure.com.

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PS-425 Pitot-static tester

Product From Preston Pressure LLC

The PS-425 pitot-static tester from Preston Pressure uses manual pumps and a digital display, calibrated to 35,000 feet. Ideal for pitot-static tests and go-no-go checks. It is powered by 12 volts DC, either by internal batteries or a power adapter. Leak test timer. Annual calibration. For more information call (580) 286-3161 or visit

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Analog drop-in replacements

Product From Preston Pressure LLC

Preston Pressure manufactures drop-in replacements for analog mechanical indicators in pitot-static testers. Altimeters indicate VSI (vertical speed) and are available in 35,000 and 50,000 feet options. Airspeed indicators available in 300 and 500 knot options, and display in mph and kph. Both instruments have a leak test function. For more information call (580) 286-3161 or visit

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