FeaturesL Cute and light, convenient to carry. L Two color OLED display, Six display modes. L 4-direction display automatically. No need press any key. L Visual alarm function. Real-time spot-checks. L Low power consumption. 50 hours continuous to work. L Low perfusion ≤ 0.4%. L Low voltage indicator. L Automatic power off without operation within 8 seconds. L Reliable accuracy and durability. L Vacuum-galvanization technique and UV printing technology contributes to Specular appearance, fashion. Technical Specifications: L Display type: OLED two color display. L SpO2 measurement range: 70%-99%, PR measurement range: 30-240BPM. L Resolution: ± 1% for SpO2, ± 1BPM for Pulse Rate. L Accuracy: ± 2% (70%-99%), unspecified(≤ 70%) for SpO2. L Low Perfusion ≤ 0.4%. L Power: DC 3V, AAA(× 2) built-inL Power consumption: <30mA. L N. W.: 50g; G. W.: 80g (including batteries)
