A Series of 796-100 Air Flow Indicators with adjustable base are available to measure air system leakage across a 19/64" orifice using a pressure dif ferential (psi) scale. Green or black dials are available with down or side-mounting assembly . An integral quick "disconnect and test" feature allows for periodic inspection in place without breaking any air connections while using the GW 706-000 Gauge and Pressure Switch Tester. A red indicator light and adjustable AFM reference pointer are included. AFI are available in individual housing if console or control stand mounting is not possible. 19/64" orifices and adapters are available and illustrated in GW's miscellaneous section.