The blood pressure reader uses fuzzy logic and a one-touch setup that can work through two people with fifty readings each. It has a four color hypertension indicator, an irregular heartbeat indicator and a SYS, DIA and Pulse LCD readout. It works with 4 AA 1.5V alkaline batteries that are included and can work with an optional AC adapter. It can display the time and date and shut off automatically while identifying battery power as needed.