Colorful, Portable, and LCD screen Testing the purity of oxygen concentrator and useful in othe situations for monitoring Oxy.

specification:

1,accuracy:+-3%

2, Max. Pressure: 138Pa

3, Max. Flow: 15LPM

4, Low battery voltage reminding

5, Power off automatically in 15mins without single

6, LCD purity display, between 21.0%~99.9%

YAY-120 15L/min Max. Flow Portable Oxygen Analyzer,