A pressure gauge for measuring blood pressure WordNet 3.0 & Open English WordNet

A sphygmomanometer, a.k.a. a blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure the pressure. Wikipedia

Instrument for measuring blood pressure Wikidata

A device used to measure blood pressure. OmegaWiki

Device to measure blood pressure. Wiktionary (translation)