Sell 【Ready Stock】10pcs Christmas KF94 Mask Willow Leaf Fish Mouth Cartoon 3D Three-dimensional Mask KN95 Mask Four Layers Of Protection【Rauun】 best price

Package Included: 1*Oximeter Specifications: Display mode: OLED Net weight: 20g Power consumption: less than 30mA Voltage: DC 3.0V Product size: 5cm*3cm Screen resolution: 128*64 SpO2 measuring range: 0%~100% PR measuring range: 30bpm-250bpm Description: 1. Rechargeable oximeter, both adults and children can use 2. Pinch off the clamp, insert your finger from the mouth into the measurement position (finger is fully straightened), and then press the measurement button 3. Do not use the tested finger to pull or move the human body 4. Generally, the relevant measurement data can be read directly from the display screen within 5-10 seconds; 5. Take your finger out of the clamp, it will automatically close after about 8 seconds.