A measurement is provided. The measurement is used to measure a pulse signal of a specific region of an object. At a measurement mode, a sensor senses a vessel pulse waveform to generate a pulse signal, a first electrode generates a first potential signal, and a second electrode generates a second potential signal. A first analog front-end circuit is coupled to the sensor and digitizes the pulse signal to generate a digital pulse signal at the measurement mode. A second analog front-end circuit is coupled to the first and second electrodes. The second analog front-end circuit obtains an electrocardiogram signal according to the first and second potential signals and digitizes the electrocardiogram signal at the measurement mode. A memory stores the digital pulse signal and the electrocardiogram signal. The processor determines a polarity of the electrocardiogram signal to indicate the specific region is on a left part or a right part of a body of the object.一種量測裝置,用以於量測模式下量測受測者之特定部位的脈波信號。於量測模式下,感測器感測特定部位之血管脈波波形以產生脈波信號,第一電極產生一第一電位信號,且第二電極產生一第二電位信號。第一類比前端電路耦接感測器,且於量測模式下將脈波信號數位化以產生數位脈波信號。第二類比前端電路耦接第一與第二電極,且於量測模式下根據第一與第二電位信號間之電位差獲得心電信號,並將心電信號數位化。記憶體儲存數位脈波信號及心電信號。處理器於量測模式下判斷心電信號之極性,以指示特定部位位於受測者身體之左部分或右部分。1‧‧‧量測裝置2‧‧‧外接子裝置10‧‧‧殼體11‧‧‧感測器12...14‧‧‧電極15‧‧‧顯示器16‧‧‧連接埠17‧‧‧電源開關18‧‧‧環帶19‧‧‧受測者140‧‧‧控制鈕141‧‧‧傳輸線
