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Fingertip Oximeter Pulse Detection Fingertip Finger Heart Rate Test Pulse Features: 1. Finger pulse oximeter is an economical and accurate method to detect pulse rate and oxygen saturation through fingers. 2.It also shows the volume waveform to ensure the accuracy. The unique PI index can effectively reflect the pulsating blood flow. 3.130R blood oxygen has respiratory rate monitoring function, 131R blood oxygen has sleep monitoring function up to 8 hours, data storage and data analysis function, self-adjusting finger clip and simple one key design are easy to operate. 4.The screen has 5 levels of brightness adjustable, small size, easy to carry. Descriptions: It is suitable for daily use and can measure your health status at any time. Specifications: Material: plastic Working voltage: 2.6 - 3.6V Power consumption: not more than 25maA SpO2 measurement range: 0 -100% Pulse rate measurement range: 30 - 250BPM (resolution is 1BPM) Size: 51*31*31mm Color: black Package Included： 1 * Oximeter Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.