DC 3V 3.7V Small Mini N20 Air Pump Micro Diaphragm Vacuum Pump Oxygen Pump DIY Sphygmomanometer Blood Pressure Monitor

DC 3V 3.7V Small Mini N20 Air Pump Micro Diaphragm Vacuum Pump Oxygen Pump DIY Sphygmomanometer Blood Pressure Monitor
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sku: 1005006756189334
$1.33+2%
$1.36
Shipping from: China
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