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Handheld Pulse Oximeter SpO2 Probe Blood Oxygen Heart Rate Monitor for Adult US CaptionCaption High Accuracy & Fast Results: The Finger Oxygen Monitor is highly accurate to 1%. Can accurately detects SpO2, PR (Pulse Rate), and PI (Perfusion Index).The oximeter measurement results will displayed on the large led screen in 2-5 seconds. You could clearly view the measurement results.With Alarm Settings: This Handheld Finger Oxygen Monitor with alarm sound,you could freely set the maximum and minimum values for SpO2 and pulse rate, and when your measurement is outside the range you have set, the pulse oximeter will sound an alarm. If you don't need the alarm sound, you can turn it off with one click.No Need Replace Batteries: This Oxygen Finger Monitor use of charging mode, not need replace batteries. Is very convenient.When fully charged, the oximeter can be used for 18 hours.The charging base and cables are included in accessories.With Bluetooth Function: Handheld Oximeter Pulse Finger with bluetooth function,you could connect to your mobile phone. So the measurement data can be printed or shared your friends or family.Suitable For Multi-person management: The handheld pulse oximeter can store up to 10 IDs and each user can store 300 sets of data, suitable for the whole family. Package comes with 1 * handheld pulse oximeter, 1 * chargingbase, 1 * charging cable, 1 * finger gripper probe(for adults), 1 * Oximeter protective case, 1 * user manual. This device is for Sports & Aviation use only.Product SpecificationsSpO2Measuring Range0-100%Resolution1%AccuracyAt 70-100%,±1%；At 0-69%,unspecifiedData update period<3sPRMeasuring Range 25-250bpmResolution 1bpmAccuracy ±1%or ± 1bpm,whichever is greaterData update period <13sBattery SpeciifcationsTypeVoltageLithium Battery2000mA Possible Problems and ResolutionsProblemsPossible CasuesSolutionThe Pulse search time is too longPerfusion may be too lowChange the measuring site. Try another fingerBody moveInterference due to person activity may be preventing the oximeter from tracking the pulse. Keep the person still, if possible.Electromagnetic interference may be preventing the oximeter from tracking the pulseRemove the source of interference.There may be interference due to ambient light, or the oximeter may be on an extremity with a blood pressure cuff, arterial catheter, or intravascular line.Reposition oximeter, as necessary.Display is dark-or-brightBattery capacities are low or Brightness not turned on to the highest level 1. Charging 2. Enter the menu to increase the brightness💳 Payment PolicyPayPal is the only payment method we accept.Please confirm your shipping address is correct before you make the payment. ✈️Shipping Policy Item will be deliveried within 2 business days after full payment is received. We only ship to the approved address given in EBAY payment. Please make sure payment address in EBAY is correct. Any non-received items caused by invalid address registered on EBAY are not in our full refund or replacement policy. 🔔Please note:If you have any questions after receiving the item, or encounter any problems during use, or any dissatisfaction with our products, please feel free to contact us through eBay messages instead of rushing to initiate a return request or leave negative feedback.Please do not worry, our customer service team will solve your problem satisfactorily. BrandHOLFENERYTypeCompact Pulse OximeterDisplay TypeLCDLabels & CertificationsCE/FDAMPNJKS50FManufacturer Warranty1 YearProduct LinePulse Oximeter ManufacturerColorWhiteFeaturesSmartphone Compatible, With Alarm, With USB CableConnectivityBluetoothCountry/Region of ManufactureChinaPower SourceRechargeable BatteryUnit TypeUnitSensor TechnologyInfrared Sensor