Circumference for the wrist of approximately 140 x 195 mm
Operating temperature: + 5 ? C to 40 ? C, 40-80 percent RH
Power supply: 2 x 1.5 mm
Warranty : 3 Years replacement Guaranty
Remember to use your left arm lying down or sitting when measuring your blood pressure on a wrist blood pressure monitor. An important factor to remember is to place your left arm at an angle to align the blood pressure monitor cuff with your heart level.