The invention is a device for representing {HEAD ~ changes} in {TAIL ~ barometric pressure} comprising an electronic barometric pressure sensor 2 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 
in
The invention is a device for representing { HEAD ~ changes } in { TAIL ~ barometric pressure } comprising an electronic barometric pressure sensor 2 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 HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH