ADC Advantage 6013SA Automatic Digital Blood Pressure Monitor, Small Adult is Smart Logic Technology for the ultimate in simplicityLatex-free/compact designExtra large vertical format LCD readoutAutomatic power-off conserves battery lifeAccurate to +/-3mmHg or 2% of readingRequires 4 "AA" batteries (not included)Battery life approximately 400 cyclesTwo year limited warrantySize: Adult SmallADC medical instruments and accessories have been carefully designed to meet the rigorous demands of the most discriminating healthcare professionals throughout the world.ADC products are manufactured from the finest materials with an uncompromising concern for quality.Exhaustive inspection of every item by ADC factory trained quality control staff ensures strict compliance with ADC standards for performance and durability.And the commitment to manufacturing excellence is backed by the industry's most extensive warranties.