Features:Small In Volume, Light In Weight And Convenient In Carrying.Operation Of The Product Is Simple, Low Power Consumption.Can Display The SPO2 And PR.Low-Voltage Indication: Low-Voltage Indicator Appears Before Working Abnormally Which Is Due To Low-Voltage.Automatically Power Off Function: When The Device Is Under The State Of Measuring Interface. It Will Automatically Power Off Within 5 Seconds If The Finger Falls Out Of Probe. Specifications:Color: BluePower: 2 * 1.5V AAA Battery (Not Included)Power Consumption: Smaller Than 30mA(Normal)Operating Temperature: 5??-40??Storage Temperature: -10??-50??Relative Humidity: 15%-80% Non-CondensingHemoglobin Saturation Display: 35-100%Pulse Rate Display: 30-250BPMItem Size: 5.8 * 3.3 * 3.3cm / 2.28 * 1.29.
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