Portable Oxygen Finger Monitor, Finger Tester with Colorful LED Display Now $22.99
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- Color led display screen to display content clearly.
- Set alarms and beeps as needed, warn when the measured value exceeds the defined value.
- The silicone finger mold is comfortable to use and does not overwhelm fingertips.
- Low energy consumption and ecologically friendly, automatic shutdown after 5 seconds when not in use.
- Light weight and easy to operate.
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