finger clip pulse oximeter digital finger oximeter oled display with spo2 heart rate monitor easy reading with protective box

1.this fingertip pulse oximeter is a portable device to measure spo2 (bloods oxygen saturation levels) for household and personal use. 2.the measuring operation is easy and quick, you just need to place your finger inside the pelectrical sensor and accurate measurements will be display on the screen. 3.suitable for all ages, choose one to have a good command of the health of your families and yourself to prevent the happening of some cardiovascular and cerebrovascular diseases.