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Technical Features - Display SpO 2 , PR, PI - Anti-natural light interference - Work well under weak perfusion index - Perfusion index, pulse rate waveform and battery indicator - Battery Type: Two 1.5v AAA alkaline batteries - Working Voltage: DC 2.2V ~ DC 3.4V - SpO 2 : Measurement range: 35% - 100% Accuracy: ±2% (80% - 100%) ；±3% (70% - 79%) - Pulse Rate: Measurement range: 25 - 250bpm Accuracy: ±2bpm - Free App: Berry Smart Health - CE, ISO13485, NMPA, FCC, RoHS Size：63(L)x34(W)x30(D)mm
-200Pcs/Carton -Carton Size: 470(L)x470(W)x380(D)mm
