2 PCS ZM-700-02 TFT Fingertip Oximeter Blood Oxygen Saturation Detector,Ramdom Color Delivery

Features:
1. Lightweight and easy to carry
2. Manually adjust the interface direction
3. IPS color screen display, display test value and bar graph at the same time
4. Auto Standby
5. The oximeter needs 2 AAA batteries for power supply (batteries not included)

Specifications:
1. Accuracy: +/-2% at the stage of 70%-100%, not specified (less than or equal to 70%)
2. Resolution: +/-1%
3. Measuring range: 25BPM-250BPM
4. PR accuracy: +/-1BPM or +/-1%
5. Working temperature: 5-40 degrees Celsius
6. Storage temperature: -10-40 degrees Celsius
7. Working humidity: 15%-80%
8. Storage humidity: 10%-80%
9. Dimensions: 38 x 35 x 66 mm
10. Net weight: 27.5 grams