Fingertip Pulse Oximeter- HOLFENRY Pulse Oximeter Bluetooth Oximeter Oxygen Saturation Monitor for SpO2/Heart Rate/PI, with Auto Graph Display/Alarm/Dedicated App, Compatible with iOS&Android Black workwarehouse 2V 550mAh AAA Rechargeable Batteries

2V 550mAh AAA Rechargeable Batteries 4-Pack iMah HR03 1

With retro design

48x Stainless steel screws

Provides reliable ground fault protection with a trip indicator light and reset button on the outlet for easy

but a normal range is anywhere from 6

Fingertip Pulse Oximeter- HOLFENRY Pulse Oximeter Bluetooth Oximeter Oxygen Saturation Monitor for SpO2/Heart Rate/PI, with Auto Graph Display/Alarm/Dedicated App, Compatible with iOS&Android Black workwarehouse 2V 550mAh AAA Rechargeable BatteriesFingertip Pulse Oximeter HOLFENRY Pulse Oximeter Bluetooth Oximeter Oxygen Saturation Monitor for SpO2 Heart Rate PI, with Auto Graph Display Alarm Dedicated App, Compatible with iOS&Android Product Features Accuracy and Reliable: The pulse oximeter bluetooth can quickly measure SPo2 perfusion index (PI) heart rate at the same time, and displays real time data and dynamic graph within 8 seconds. The measurement data will be displayed on the high