Know your blood pressure at a glance! Digital wrist monitor gives you a quick, accurate, easy-to-read measurement. The screen color on the backlit LCD display changes to reflect normal BP range (green), pre-hypertension (yellow), or hypertension (red). Also displays systolic, diastolic and pulse readings plus stores up to 90 earlier readings at a time for up to 2 users. One size fits most wrists. Storage case and instructions incl. Uses 2 AAA batteries (not incl.).