Advanced Features Through Smart App Integration - The Zacurate 500E-B Bluetooth Pulse Oximeter is the latest innovation in the Zacurate line, incorporating several advanced features into one. Paired with our free Smart APP- ‘Beyond Oximeter’ ( IOS and Android compatible), it facilitates effortless real-time monitoring and recording of SpO2, pulse rate, and pulse strength. It supports multiple users and enables data storage over time. Accurate And Reliable - The advanced infrared sensor and OLED color display guarantee accurate measurement of SpO2 and pulse rate even under conditions of low blood perfusion, ensuring reliable readings in any environment. Patented Multi-Directional Display – Choose from 6 different layout options for convenient viewing of your blood oxygen level and pulse measurement. At the push of a button, switch the OLED display from facing the user to another layout facing your caregiver. Sports Enthusiasts, Aviation Or Home Use - Ideal for climbers, skiers, bikers, aviators, and on-the-go SpO2 and pulse rate tracking. Use pre- or post- exercise, remaining still during measurement. *Not designed for continuous overnight monitoring/recording. 18 Months Manufacturer Warranty & Fully Loaded With Accessories - The device comes equipped with 2 AAA batteries, a silicone cover for protection against dirt and damage, and a lanyard for added convenience. Additionally, it is the only pulse oximeter in the Zacurate line to offer an 18-month manufacturer’s warranty.