Smart Devices Battery fingertip pulse oximeter blue and white source factory direct sales

Compact and portable, one key measurement.Infrared detection, fast and accurate. Silicone finger pad, comfortable to wear.Automatic shutdown, energy saving and power saving. Imported chip, accurate measurement .Noninvasive detection, bid farewell to pain. Multi-directional display, easy reading.Large font, clear content. Multiple color selection.Four color display screen and led screen.