Sell Original USA Oximeter Portable Fingertip Pulse OLED Pulse Oximeter Display TFT4 best price

Product introduction： 12 month warranty, free warranty and replacement service Blood oxygen and heart rate Simultaneous display for testing value USA imported chips are more stable Fine workmanship, high accuracy and durability Automatic switch-off function for power saving Display Type: Ultra HD TFT display SpO2: Display range: 35%-100% Accuracy: 70-99%, ±2%; 0-69% no definition. Pulse Rate: Measurement range: 25-250 BPM Accuracy: ± 1BPM/± 1% BPM（Take the larger value） Power Requirements: 2pcs AAA batteries (Not included) If you have any questions, please contact customer service and we will give you a satisfactory reply