blood pressure monitor L8

Features

1.99 sets memory group 
2. Measure range: Pressure :20-280mmHg(2.7-37kPa) Pulse rate :40-160times/min.
3. Accuracy: Pressure:±3mmHg (within±4kPa). Pulse rate:accuracy is ±5% 
4. Display : Digital liquid crystal display 
5. Battery: Two alkaline batteries (AAA)
6. Operating temperatures: 5.0 to 40.0°C, ≤85% RH
7. Dimensions: 82x70 x25mm
8. Auto power off: power off when no operation for 1 minute

9.Rour modes are selected to adjust the value of sound setting.Press the '+' and '-' button on the side to increase and reduce the volume