4) i.e To measure BLOOD pressure.A sphygmomanometer is a device USED to measure blood pressure and is composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner.It also consists of mercury or aneroid manometer to measure the pressure.It is also known as blood pressure GAUGE, blood pressure MONITOR, and blood pressure meter.Device NamePurposePulsograph or PulsometerTo measure heart rateLipidocareTo measure cholesterolGlucometerTo measure blood sugar