On-Board Pressure Indicator (each).
An additional item to enhance your air system. Designed to be mounted on or in any aircraft using pneumatic retracts. This indicator T-connects into your pneumatic air system to monitor system pressure. Air pressure is measured in 20 psi increments, to a maximum of 150 psi. Double sealed for leak-proof operation, this on-board indicator quickly tells you what air pressure is in your system.