All-in-one vital signs monitor for doctors, caregivers, and patients. Integrates ECG/EKG, ECG Holter, SpO2 (oxygen saturation), PI (perfusion index), body temperature, and pedometer in one device with palm-sized design. FDA certificated, medically accurate and reliable. Cable and cable-free operations for ECG and SpO2 check, with the highly sensitive built-in sensor and included external accessories. 24-Hour ECG Holter continuous testing. 10-hour SpO2 monitoring for sleep apnea or OSA screening. Manage detailed vital signs data conveniently by free iOS/Android APP. Transfer data to free Windows PC software; export and print reports; get deep insights into the health metrics. Multi-user system for more patient accounts.