Come and see our amazing products. Newest fingertip pulse oximeter will accurately measure your SPO2, PR and PI. Low perfusion with accuracy of 4% or even less than 0.1%. Automatically measure the readings in sleep, and store the readings for 8 hours. Simple operation, small volume, light weight and convenient in carrying. One button operation, auto power-off after few seconds.Set the alarm according to your needs. There will be a warning once the measured values go beyond the set threshold. Digital display, 4-directions rotation display, 6 different display modes in total. View results from any direction.2 PC AAA battery can be used continuously for 20 hours. Suitable for adult and kids's finger sizes.Could be customized. Pls confirm further with us if any query about packing info, inventory status and time schedule.