* Display Mode: LED * SpO2 Measuring Range: 0%~100%, (the resolution is 1%). * Accuracy:70%~100%: ±2%, Below 70% unspecified. * PR Measuring Range: 30bpm~250bpm, (the resolution is 1bpm) * Accuracy: ±2bpm or ±2% (select larger) * 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%. * Power Consumption:less than 25mA * Voltage: DC 2.6V~3.6V * Power Supply: 1.5V (AAA size) alkaline batteries * 2 * Safety Type: Interior Battery, BF Type
