Sell japan collagenamino collagenWhitening Mask✣♠【Ready Stock & 100% Original】[4 Color LED Display ] GOGO best price

Product features: 1. Display parameters: SpO2 value of blood oxygen, PR value of pulse, bar graph of blood oxygen 2. Display screen: the product adopts blue and yellow two-color OLED display, with 5-level brightness adjustable 3. Display mode: four directions and six display modes 4. Energy saving and environmental protection: the product has low power consumption and two AAA batteries can be used for more than 40 hours 5. Voltage warning: when the battery voltage is too low and may affect normal use, there is a low voltage warning prompt 6. Automatic shutdown: when no signal is generated, the product will automatically shut down after 8 seconds 7. Advantages: it integrates blood oxygen probe and processing display module. The product is easy to use, low power consumption, small size, light weight and easy to carry Oxygen saturation measurement range: 70% ~ 99% Pulse rate measurement range: 30bpm ~ 240bpm Oxygen saturation measurement accuracy: 70% ~ 99% ± 2%, ≤ 70% undefined pulse rate measurement accuracy: ± 1bpm or measured value ± 1% (whichever is greater) SpO2 resolution: SpO2 ± 1% Blood perfusion index: ≥ 0.2%, ± 0.1% Sleep monitoring time: none Power consumption: less than 30mA Automatic shutdown: no finger insertion, 8 seconds automatic shutdown Service temperature: 5 ℃ ~ 40 ℃ Storage humidity: 15% ~ 80%, working time: 10% ~ 80% Storage atmospheric pressure: 70kpa ~ 106kpa Battery model: 2 * 1.5V (2 AAA alkaline batteries are not included) Material: ABS + PC Package List: 1 x Fingertip Oximeter 1 x English user manual 1 x Product lanyard 1 x Color box packing