Operation GuideSpOâ Measurement: Short press the Power/Function button for 1 second to turn on. The device will directly enter SpOâ measurement mode.CNIBP Measurement: Under SpOâ mode, short press the Power/Function button again for 1 second to switch to CNIBP (Non-Invasive Blood Pressure) measurement.CNIBP Calibration: In CNIBP mode, long press the Power/Function button for 2 seconds to enter settings. Short press again to select specific parameters.Smart FeaturesAuto-Rotation: The display rotates automatically based on device orientation for easy viewing.Auto Power Off: When no valid signal is detected, " - - - " is displayed, and the device turns off after 10 seconds.Specifications & AccuracySpOâ: Measuring range: 35%â100%; Accuracy: ±2% (80%â100%), ±3% (70%â79%)Pulse Rate (PR): Measuring range: 25â250 bpm; Accuracy: ±2% bpmPower InfoUses two AAA 1.5V alkaline batteries (not included)Low battery indicator displayed on screenUp to 15 hours of continuous usageKey Featuresâï¸ One-touch operation - simple and user-friendlyâï¸ Compact and lightweight - easy to carryâï¸ 4-way gravity sensor - screen rotates automaticallyâï¸ Energy-efficient - extended battery lifeâï¸ Low battery reminder - ensures uninterrupted useâï¸ Auto shutdown - saves power when not in use Why Choose This Device?Ideal for on-the-go health monitoring, this fingertip pulse oximeter offers medical-grade accuracy in a portable, easy-to-use design. Perfect for sports enthusiasts, travelers, and daily health checkups.ABS