Withings, the brand best known for its smart scales and smart watches, has announced a new product that’s never been seen before. The BeamO is a palm-sized, at-home monitoring device (or “multiscope”) that can provide a comprehensive view of your heart and lung health. It combines an ECG, which records the rate and rhythm of the heart, with a stethoscope for measuring lung health, a thermometer, and an oximeter, which tests blood oxygen levels. To use it, you simply hold the BeamO to their forehead or over your heart or lungs, depending on which measurement you want to take. Data is then sent …