High Accuracy: Adopt pressure differential principle enables this device the hospital-grade precision.
Automatically displays: LCD digital display the test results clearly
Good Repeatability: Further calibration is not necessary after out of the factory.
No Additional Parts: No further expense on the disposable mouthpieces.
Excellent Structure Design: Easy for your hands.
Easy to Take: portable size and lightweight.
Age: Suitable for all ages above four.
Reviews
There are no reviews yet.