The Pulse brand oximeter features infrared sensor technology, making it accurate in detecting oxygen saturation levels. Pulse, a popular choice in private care environments and a reliable brand tested by the NHS. This black, FDA 510K compliant device is compact and powered by batteries, allowing for easy use and portability. With wireless connectivity, this fingertip oximeter is a convenient and efficient tool for monitoring and testing oxygen levels for various health and beauty applications. This listing is for the purchase of 40 devices.