... Oximeter Technical Parameter:1. Integrated with SPO2 probe and processing display module.2. Can be used in: hospital, home, community medical ... measure SPO2 and PR accurately4. SPO2 and PR display, PR waveform and bargraph display 5. Battery voltage low indication 6. Four directions ... light, convenient to carry 10. 1.3' double color OLED display, resolution 160*6411. SPO2: 35%-99%, Pulse Ratio: 30-- ...