This instrument is primarily used in an environment
such as inside the car where the mounting space is
When it is used inside the car, for instance, the pressure
at two points such as in the air tank and the
brake cylinder are indicated on the same scale
• Since the pressure at two points is indicated on the
same plate, the instrument occupies little space and
is economical for use in a limited space.
• The pressure at two points is conveniently compared
on the scale plate.