Specifications: See full list of specifications below. Pulse monitor: Get an oximeter finger tip pulse monitor. Measures: Blood oxygen saturation and pulse rate are measured with the touch of one button. Powered by 2 x AAA batteries (not included), just put your one finger into the oximeter and the data will display on the screen. Super comfortable: The self-adjusting spring design ensures to fit into any finger size without tension, while the finger clip is cushioned with rubber padding for added comfort. | Oximeter Finger Tip Pulse Monitor - Blue | Wowcher