8 Segment LED display for clarity
Auto off after 8 seconds
2 x AAA batteries (supplied)
Lanyard supplied
Measuring range:  SpO2 - 35 to 99%     PR - 30 to 245 BPM     PR bar-graph showing strength

Resolution:  +/- 1% for SpO2      +/- 1 BPM for pulse rate

Accuracy:  Sp02 80% - 99% +/- 2%       70% - 80% +/- 3%

Weight:  Approx 50g including batteries

Battery life:  Circa 30 hours continuous measurement    Low voltage warning    Auto off

Dimensions:  57mm x 30mm x 33mm