A3 Pulse Oximeter

Large OLED display
Audible and visual alarm settings
Manual four direction display
Automatic power off after 8 seconds
Accurate monitoring even at low perfusion of ≤ 0.4%. ISO and CE approved
1-year warrantee

Oxygen saturation (Sp‎O2)
Measuring range: 35%-99%
Resolution: ± 1%
Accuracy: 90%-99%: ±1% unspecified ≤70%
Alarm default value: ˂ 85%

Pulse rate (PR)
Measurement range: 30bpm-240bpm
Resolution: ± 1bpm
Alarm default value: ˃ 110bpm
Upper limit setting range: 100bpm-250bpm, lower setting range: 15-95bpm

Power supply: Two 1.5V (AAA size) alkaline batteries (not included)