Flowmeter and product family of flowmeters

A flowmeter for determining a flow-velocity-dependent measured variable, comprising:

• a sensor for determining a process variable of a medium,
• wherein the sensor has a measuring tube for guiding the medium,
• wherein the sensor has at least one sensor measuring unit for determining the process variable of the medium,
• wherein the sensor has a sensor housing which is arranged on an outer surface of the measuring tube,
• wherein the sensor measuring unit is at least partially arranged in the sensor housing,
• wherein the sensor has sensor electronics which are configured to operate the at least one sensor measuring unit with an operating signal and to determine the process variable depending upon a measuring signal provided by the at least one sensor measuring unit,
• a transmitter,
• wherein the transmitter has a transmitter housing,
• wherein the transmitter housing has a transmitter housing cover which forms the front portion of the transmitter housing,
• wherein the sensor electronics are arranged in the transmitter housing cover,
• wherein the transmitter the transmitter housing cover is designed such that it can be arranged directly on a sensor-transmitter interface of the sensor housing and also on an transmitter holder which is external relative to the sensor housing,
• wherein the transmitter housing cover is configured to be arranged on the sensor-transmitter interface or the transmitter holder,
• wherein the transmitter has transmitter electronics which are in communication with the sensor electronics,
• wherein the transmitter electronics are arranged in the transmitter housing,
• wherein the transmitter electronics comprise a radio module for supporting a radio standard, wherein the radio module is configured to form a wireless connection between the transmitter electronics and an external receiver.