Mark of Fitness MF-46 Auto-Inflate Blood Pressure Monitor is clinically proven accurate. The unit is fully automatic; just one press of the power button measures blood pressue and pulse. "IQ" system measures quickly, and with maximum user comfort. Unit has large digital display and latex-free cuff, and fits arm sizes 8.7-12.6 inches (22-32 cm). 30-time memory for two people, with date, time and average.5-year warranty. Instructions in English, Spanish, French and Portuguese.