A4 Pulse Oximeter

Patented automatic 4-way screen orientation, Low Power consumption, Low Perfusion ≤ 0.4%; – Portable, Small and light weight, Durable and fashionable design, Vacuum-galvanization and UV printing technology


  •  Display type: OLED tow color display.
  •  SPO2 measurement range: 70%-99%, PR measurement range: 30-240BPM
  • Resolution: +1% for SPO2, + 1BPM for pulse rate.
  • Accuracy: +2% (70%-99%), unspecified (<70%) for SPO2.
  • Low Perfusion <0.4%.
  • Power: two of 1.5V (AAA size) alkaline batteries.
  • Power consumption: < 30mA.
  • Automatic power-off: the product will automatically be powered off when no signal is in the product for longer then 8 seconds.
  • Weight: total weight is about 50g. including batteries.