Technical properties:
- Two-colour OLED display with 6 display options.
- Power supply via 2x AAA batteries.
- Measuring range Spo2: 0-100% Resolution 1%.
- Accuracy Spo2: 70-100% : Deviation 2%. (0 - 69% not specified)
- Heart rate measuring range: 25-250 beats/min Resolution 1 beat/min
- Heart rate accuracy: +/- 2 beats/min: 2% drift
- Low power indication