The invention is a device for representing changes in barometric pressure comprising an electronic barometric pressure sensor and a digital differentiating circuit in which a differential quotient ΔP/Δt is found which is connected to {HEAD ~ a display} of the speed of the change in barometric pressure with {TAIL ~ mathematical sign} and numerical figure 
with
The invention is a device for representing changes in barometric pressure comprising an electronic barometric pressure sensor and a digital differentiating circuit in which a differential quotient ΔP / Δt is found which is connected to { HEAD ~ a display } of the speed of the change in barometric pressure with { TAIL ~ mathematical sign } and numerical figure
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