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There are many different pulse oximeters available in the market from various brands. These pulse oximeters vary in their features sizes price and durability. One has to choose the oximeter for his or her requirements. A good pulse oximeter should have a finger grip which is adjustable and can accommodate fingers of all sizes without putting any extra attachment to it. It should give accurate readings with minimal variations. All pulse oximeters also indicate pulse rate along with oxygen saturation. There are pulse oximeters which show bar diagram and battery levels along with the above parameters. The display size should be sufficiently large to make it easy to be read by elderly also. The display should preferably be rotatable so that it can be viewed from any angle.