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