High Monitoring: Experience reliable and accurate health monitoring with our non-invasive blood oximeter, designed for both professionals and home use. User-Friendly Design: Equipped with a clear digital display, this portable oximeter is straightforward and easy to operate, making it ideal for all age groups. Portable Convenience: and compact, it fits easily in your pocket or bag, perfect for travel or on-the-go monitoring. Battery Powered: Operates efficiently on batteries, ensuring that you can use it anywhere without the need for electrical outlets. Batteries:2 x AAA batteries (not included) Pulse Range: Measurement Range: 30 BPM to 240 BPM; Accuracy: ±1 BPM or 1% of the measured value (whichever is greater) Blood Oxygen Saturation: Measurement Range: 70% to 99% Accuracy: ±2% within the range of 70% to 99%, accuracy varies below 70% Resolution: ±1% of blood oxygen saturation Due to different batches, there may be differences in product appearance and printed text, which not affect use Color:Black Material:ABS Package Contents: 1 * Blood Oximeter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.