Working voltage: 2.6 – 3.6V
Material: plastic
Power consumption: not more than 25maA
SpO2 measurement range: 0 -100%
SpO2 Measuring Range:0%~100% (LK87 70%-100%)
Pulse rate measurement range: 30 – 250BPM (resolution is 1BPM)
Power Requirement:2*1.5V AAA alkaline battery (not include)
Display Format: OLED two color display / LK87 LED color display