Digital Lung Capacity Tester Spirometer with Mouthpiece Portable Lung Capacity Monitor

This digital lung capacity tester is an electronic device designed to measure respiratory volume. It functions as a spirometer with a measurement range up to 10000 mL and a resolution of 1 mL. It features a clear LCD screen (5 cm x 2.6 cm) and a single round control button for one-press operation and quick resets. The device includes a detachable, funnel-shaped mouthpiece that is easy to clean. The package includes the main unit (made of ABS plastic), a disposable mouthpiece, batteries, and a gift box.