Keep your blood pressure levels in check with the Caliber series Aneroid Sphygmomanometer. It comes with a calibrated blue nylon cuff, adjustable gauge, inflation bulb and deluxe air release valve. This home medical equipment can be set to gauge zero simply by inserting the mini-screwdriver into the gauge system. Heart patients can monitor their daily BP levels. It comes with a protective carrying case. Ages 18 and up.