This wrist blood pressure monitor is easy to read because it has a large LCD display with backlight. Thus, it is possible to see the results in any light condition. It indicates the systolic, diastolic pressure and heart rate simultaneously. It also has a detector for irregular heart rhythm. In this case, a symbol appears on the display to alert you to this problem. The display also shows the date and time. It has a low battery alert. This Spengler blood pressure monitor has 2 banks of 50 memories each. It has a large on/off button. It has automatic shutoff. It has a comfortable foam cuff. Operates on 4 LR06 (AA) 1.5V alkaline batteries or AC/DC power adapter. It has a measuring scale from 20 to 300 mmHg.