ACCURATE, RELIABLE, & QUICK READINGS - Clinically tested and proven consistent results. Receive blood SpO2, Pulse Rate, and Pulse Strength results within 8 to 10 seconds on large digital red LED Pulse Oximeter display. SpO2, PULSE RATE, and PULSE BAR GRAPH READINGS - Simple bar graph that displays your Pulse Oximeter SpO2, Pulse Rate, and Pulse Strength results. SUITABLE FOR ALL AGES - Smart design allows for a range of finger sizes to fit into the Pulse Oximeter finger chamber, designed with latex free silicone material. PORTABLE & EASY TO USE - Light-weight and compact, easy to handle and to carry with you for results at home or outdoors. Pulse Oximeter is for sport and aviation use only. This device is ideal for use during sports activities such as mountain climbing, running, biking, etc. LOADED WITH ACCESSORIES - Package includes 2-AAA Batteries to power up the Pulse Oximeter, Case to protect the Pulse Oximeter, Neck/Wrist Cord, User Manual, plus no-hassle 1 year manufacturer warranty Accurex Pulse Oximeter is a non-invasive device used to measure pulse oxygen saturation of arterial haemoglobin (SpO2) and the pulse rate of adult and pediatric patients at home and in hospital environments. It can help measure pulse rate and oxygen saturation conveniently.