The PS-425 is designed to be used by small shops that don’t require a lot of use or by mobile calibration shops. it contains manual pumps and an electric indicator powered by the internal battery.

Conducts Altitude tests up to 35,000 feet and is displayed in increments of 1-foot or 1-meter. The tester displays the Airspeed and in Knots as well as VSI – Vertical Speed Indicator

The PS-425 tester is specifically designed and priced for non-RVSM use. Many times there is a need to do a 91.411 test at a remote location or hangar where there is no power source available. In these cases, the PS-425 test box is the ideal tool, due to its full portability.

The price includes the test box, wall power adapter, two 20-foot hoses (about 6 meters) with connectors, and the manual. There are no test cables or other adapters included

Notable Features:

• Fully portable

• Illuminated LCD display

• Lightweight – about 17 lbs (7.7 Kg)

• Physical Dimensions: 12.5”D X 15”L X 9.75 ”H (32x38x24 cm)

Available Options:

• Hansen quick connectors (standard)

• Swagelok quick connectors

Other Features:

• Selectable timing for Leak Check feature in Altimeter and Airspeed modes

• Independent Vacuum and Pressure pumps and reservoirs

What is included:

• 1 x Power Adapter

• 2 x Hoses 20ft (~6 meters) in length

• 1 x Product Manual

• 1 x Calibration Certificate valid for 1 year

Note: The PS-425 does NOT have the precision required to test RVSM altimeter systems.

Preston Pressure warrants its products against defects in workmanship and material under normal, intended use for a period of two years from the date of purchase. The batteries are warranted for a period of 90 days from the date of purchase. Valves are warranted for a period of 180 days.

If you are not satisfied with the performance of the PS-425 pitot-static tester, you may return it for a full refund, if returned within 30 days.

Returned products must be in original condition (normal, minor wear is acceptable).

Shipping costs are not refundable.