Product introduction: MD300K1 Handheld Pulse Oximeter, accurately and quickly measure SpO2, Pulse Rate, and Pulse bar. Applies when the casualty transport, first aid and bedside care. Widely used in hospitals, clinics and medical health care center and field campaign army. Accurate Measurement Professional Guarantee 1. High brightness LEDs display SpO2, PR and pulse bar; 2. 99 ID setup; 72-hour data storage and review; 3. Med View software for data analysis; Innovational Design Exhibit Quality 1. The specialized rubber belt can be fixed on the equipment, can be convenient to the first aids, operates and daily monitoring; 2. Special design of acousto-optic alarms for non-normal state, help health care workers for the first time understand the change of patients signs; 3. Special curved enclosure design to prevent accidental drop caused by equipment damaged. Ultra-long Standby and Portable 1. 2 AA alkaline batteries can support 24-hour measurement 2. Low power consumption