5pcs Fingertip Pulse Oximiter Medical De Pulso Blood Oxigen Meter Oximetro De Dedo Saturation Heart Rate Oxygen Monitor Health Care Oximeter: Note:Use standard 2 * AAA batteries. (Batteries not included) Product name: Pulse Oximeter Power consumption: less than 30mA Working temperature: 5C~40C Measuring range: 35%~100% Accuracy: 2bpm or 2% Display: VA display pulse rate display: 30~250bpm Net weight: 31.4g Size: 60mm*35mm*37mm Electromagnetic compatibility: Class B level 1 1 Blood oxygen saturation and pulse monitoring, waveform display. 2With menu operation. 3 Low power consumption, continuous working for 50 hours. 4 Small size, light weight, easy to carry. 5 Low voltage alarm display, automatic power off. 6 Use standard AAA batteries. 7 Product function detailed instructions Included: 5*pulse oximeter 5*English Manual 5* Lanyard 5* Storage Cases