LK87 Finger Tip Pulse Oximeter Blood Oxygen Pressure Heart B

Display format:oled two color display power requirement:2*1.5v aaa alkaline battery (not include) power consumption:smaller than 30ma voltage:dc 3.0v screen resolution:128*64 pr measuring range:30bpm~250bpm spo2 measuring range:0%~100% fingertip pulse oximeter oled display 6-direction display adjustable 8 seconds fast measurement automatic power off when no signal low voltage indicator