Wellue Fingertip Blood Oxygen Saturation Monitor with Alarm, Batteries, Carry Bag & Lanyard for Wellness Use Bluetooth Color:Bluetooth Tips: Don't tighten the SCREWS

Tips: Don't tighten the SCREWS with too much strength

abrasion resistance and ultra-light

Sports ball bag that will withstand all wear & tear

you are likely to use chalk to prevent slipping

sports medals from swimming

Wellue Fingertip Blood Oxygen Saturation Monitor with Alarm, Batteries, Carry Bag & Lanyard for Wellness Use Bluetooth Color:Bluetooth Tips: Don't tighten the SCREWSWellue Fingertip Blood Oxygen Saturation Monitor with Alarm, Batteries, Carry Bag & Lanyard for Wellness Use Alarm for Abnormal Readings If your blood oxygen is lower or pulse rate is lower higher than the threshold, the WELLUE oximeter will remind you with a buzzer and a corresponding readings flashing. (Because wearing it for a long time will cause pressure on your fingers, it is not recommended to wear it overnight.) Store up to 12 groups of data