Model: ZJ-005 - Color: Yellow + White + Black - Material: Plastic - Quantity: 1 - Display screen: 1.0" - Power: Powered by 2 x AAA batteries - SpO2 measurement - Range: 35%~100% when the range is 70%~100% the permitted absolute error is +/- 2% - Pulse rate measuring range: 30bpm~250bpm - Error: +/- 2bpm or +/- 2% - Measurement performance in weak filling condition: - SpO2 and pulse rate can be shown correctly when pulse filling ratio is 0.4% SpO2 error is +/- 4% pulse rate error is +/- 2bpm during the pulse rate range of 30~99bpm and +/- 2% during the pulse rate range of 100~250bpm - Resistance to surrounding light: - The deviation between the value measured in the condition of man-made light or indoor natural light and that of darkroom is less than +/- 1% - Packing list: - 1 x Pulse oximeter - 2 x AAA batteries - 1 x Strap (40cm) - 1 x English user manual