The Air Entrainment Meter we offer is used to measure the air content of recently mixed mortar. It can do its task with an air pressure compensation principle. It has a pressure compartment in which the predefined pressure is made. When the overflow regulator gets opened, the pressure is recompensed. The air content in the mortar is provided. Air Entrainment Meter allows for the intentional creation of air bubbles. Extra water is stuck within the mix.