The P 29.2 differential pressure transmitter is particularly suitable for measuring the volume flow, mass flow, and flow velocity of natural gases such as butane, methane, etc., in industrial furnaces or combustion systems. The device does not create an ATEX zone, as its design and technical features ensure it poses no ignition hazard. The measurement ranges are scalable from 10% to 100%. A selectable time constant allows for optimal adaptation of the transmitter to the pressure conditions, thereby ensuring a stable output signal. The pressure transmitter is CE-certified as standard. NRTL certification in accordance with UL/CSA 61010-1 is in preparation.