Abstract: An ultrasonic flow meter is configured to facilitate replacement of flow measurement electronics. The flow meter includes flow measurement electronics including a plurality of transducer assemblies transmitting and receiving ultrasonic waves through a flow for ultrasonic measurement of the flow and a flow meter body. The flow meter body includes a conduit providing a flow passage through the flow meter body, an electronics receptacle configured to receive the flow measurement electronics to form an electronics housing compartment, a plurality of transducer housings configured to receive transducer assemblies and position one or more transducers of the transducer assemblies relative to the conduit, and at least two pass-through apertures directly between the electronics housing into each of the plurality of transducer housings.