■Integrated with SpO2 probe and processing display module ■Small in volume、light in weight and convenient in carrying ■Operation of the product is simple ,low power consumption ■SpO2 value display ■Pulse rate value display, bar graph display ■Low-voltage indication: low-voltage indicator appears before working abnormally which is due to low-voltageQ1: Can I have a sample for testing? A: Yes, you can, but you need to pay the sample cost and freight. The sample cost will be refunded after bulk order confirmed. Q2: Do you accept small orders ? A:Yes. If you are a small retailer or starting up business, we are definitely willing to grow up with you. And we are looking forward to co-work with you for a long term relationship. Q3: DO you have inspection procedures for the products? A: 100% self-inspection before packing. Q4: What is the warranty period of the product? A: 12 months warranty and online technical support.