Parameters: Two parameters: SpO2, Pulse Rate. Waveforms: No waveform. Features: 1Tiny, light, "all-in-one" integrated clip design, easy for carrying; 2LED screen with SpO2, PR and Pulse strength measurements; 3Immediately, real-time spot-check; 4Single button interface, easy for operation, 5Common AAA alkaline or rechargeable batteries to support 3 continuous working hours; 6Low battery power indicator; 7Automatic power-off. Colors optional: Blue / PinkSpecifications: SpO2Measurement range: 35~100% Accuracy: ± 2%(70~100%), 0~69% unspecifiedResolution: 1% Pulse RateMeasurement range: 30-250 bpm Accuracy: ± 2 bpm Resolution: 1bpm Display ModeSpO2 display: 1-digit of 2-segment and 2-digit of 7-segment red LED PR display: 3-digit of 7-segment red LED Pulse strength display: A 6-segment red LED bar-graphLow battery power indicator: A red LED Environment RequirementsTemperature: Working: 0~40oC Transport and storage: -20~60 oC Humidity: Working: 15~95%(non-condensing) Transport and storage: 10~95%(non-condensing) Altitude: Working: 86 KPa ~ 106 Kpa Transport and storage: 50KPa ~ 106 Kpa Power RequirementsBattery type: Two common 1.5V AAA alk
