Special Features:

Black dial w/ white markings; alt counter white w/ black markings; grey 100 ft drum w/ black markings; 10000 ft drum w/ black and white stripes in place of zero; fire orange flag; black bezel and knob; white pointer /w black hub

Properties:

A barometric type instrument consisting of a pressure-sensitive element which contracts or expands in proportion to atmospheric pressure, connected through a linkage to a pointer. Its dial is graduated in units of linear measurement (feet, meters, etc.) and units of pressure measurement (pounds per square inch, inches of mercury, millibars, etc.) to indicate both atmospheric pressure and differences of elevation.