****FingerTip Pulse Oximeter with OLED display (血氧機) ****
With Auto Shutdown Feature (自動關機)
4- Direction Display Mode (四個方向設定)

SpO2 Parameter Specification
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The Pulse Oxygen Saturation (SpO2) - OLED display
Measuring Range: 0% - 100%, (the resolution is 1%)
Accuracy: 70% - 100%, +/- 2%, Below 70% unspecified
Optical Sensor: Red light( wavelength is 660nm)
Infrared (wavelength is 880nm)

Pulse Parameter Specification
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Measuring Range: 30bpm ~ 250bpm (the resolution is 1bpm)
Accuracy: +/-2bpm or +/-2% select larger

Pulse Intensity
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Range: Continuous bar-graph display, the higher display indicate the stronger pulse

Battery Requirement
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1.5V (AAA size x 2pcs) Alkaline batteries or Rechargeable battery

Battery Useful Life
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Two batteries can work continually for 20hrs

Product Dimension & Weight
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Dimension: L 50 x W 32 x H 34mm
Weight: About 50g (with batteries)