A vital signs measurement apparatus 10 comprising a housing 12； a power supply 14； at least one measurement module 16, the at least one measurement module being operable to measure at least one respective vital sign； and wherein the at least one measurement module is operable to communicate with one or more external devices. In embodiments the apparatus may be in the form of a wearable in-ear electronic diagnostics device or a wearable transoesophageal diagnostics device. The housing may include an attachment member, in embodiments this may be a loop member configured to hang around the ear of a patient. The measurement module may be an infrared temperature sensor and/or a tympanic temperature sensor. The measurement module may be operable to measure the heart rate, blood pressure, electrocardiogram (ECG), respiration, pulse oximetry and capnography.
