is a portable equipment adopting advanced technology, it mainly checks SpO2 and PR value through the , which provides advanced, non-invasive and scientific means for quantitative measurement of oxygen saturation. is applicable for use in plateau area, community healthcare, oxygen bar, Fitness clubs, physical training room, family and institution, etc. Features - Color: Black. - Material: Plastic. - Size: 5.5 x 3.6 x 3.8 cm/2.2 x 1.4 x 1.5 inch. - Battery: 2xAAA battery (not included). - Screen resolution: 128x64. - Display mode: 0.96 inch dual color OLED display (blue and yellow). - Sp02 measuring range: 0%-100% (1% resolution). - Accuracy: &plusmn;2% or &plusmn;2bpm. - PR measuring range: 30bpm-250bpm (1bpm resolution). - Voltage: DC 3V. - Power consumption: <=30mA. - mainly measure human oxygen saturation and . It is suitable for family, physical care in sports and etc. What’s more, it also suits for elderly people over 60 years old, people who work more than 12 hours a day. - Turn the , put one of your fingers into rubber hole of the . Then release the , press the button, will go into the working state. The will automatically fall into standby or sleep mode seconds without a in it. - Quicker display: The adopt advanced sensing technology, the test results will be displayed on the screen only 5S. No need to wait. - OLED display: High brightness, low power consumption, high-brightness display, even for the elderly, also can accurately and easily read the values of the . Convenient and compact, can take care of your health at any time. - Manually adjust the direction of interface. Package list: 1 x