WristOx2® 3150SK BLE Wrist-Worn Pulse Oximeter with Wireless Technology, Bluetooth® Low Energy; Standard Accessories Include: One 3150BLE WristOx2® Standard Assembly, One PureLight® 8000SM-WO2 Medium Soft Reusable SpO2 Sensor, Two AAA Alkaline (1) (1) (2) — medical supply from Hart Medical.