Description: Small in volume, light in weight, and convenient to carry. Color OLED display, simultaneous display for testing value and plethysmogram. Functions of audio alarm and pulse sound. Pulse waveform and bargraph display. Widely used in hospital, home healthcare, oxygen bar, community medical centre, alpine area, sports healthcare etc. During vigorous exercise, it will affect the extraction of pulse signals, need to rest a little after the measurement of blood pressure and oxygen in the blood should not be measured in the same time as far as possible to avoid strong exposure to light. Specification: Product name: Finger Pulse Oximeter Material: ABS Color: Random Color Voltage: 2.6 ~ 3.6 v Operating current: 30 mA Energy consumption: <30 mA Measurement: Arterial oxygen saturation: Measuring range: 70 ~ 99% Analysis: 1% Accuracy: ¡À 2% (70% ~ 70%) , unknown (¡Ü70%) Pulse repetition rate: Measuring range: 30 ~ 240 BPM Resolution: 1bpm Accuracy: ¡À 1 bpm or ¡À 1% Battery type: 2 X AAA batteries (batteries are not included) Size: About 60 x 35mm(L*W) Package Included: 1Pc*Finger Pulse Oximeter Note: Transition: 1cm=10mm=0.39inch 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.