Cistern barometers include liquid-in-tube barometer (indirect measure of air pressure) and fluidless flexible tube barometer (a relatively more direct measure of air pressure).
(Cistern barometers; include; liquid-in-tube barometer (indirect measure of air pressure) and fluidless flexible tube barometer)
Cistern barometers
include
liquid-in-tube barometer (indirect measure of air pressure) and fluidless flexible tube barometer