FIELD: instrumentation. SUBSTANCE: invention is based on hydrostatic method of measurement of liquid level. Case of transducer houses measurement and power membranes which planes are arranged at angle from 70 to 110 degrees and central part of power membrane is displaced relative to plane of measurement membrane. It also carries power transfer member connected to central parts of power and measurement membranes, deformation converter coupled to measurement membrane. Transducer is fitted with second power membrane which plane is located at angle of 70 to 110 degrees with regard to plane of first power membrane and at angle from 70 to 110 degrees to plane of measurement membrane. Central part of second power membrane is displaced with reference to plane of measurement membrane and is connected to power transfer member. Deformation converter is capacitive, resistance strain or piezoresistive one. Cavity above measurement membrane can be vacuumed or communicates with atmosphere. EFFECT: such design of transducer provides for simultaneous measurement of two pressure differences with usage of single elastic member. 4 cl, 1 dwg
