The HoldPeak 5800H 3-in-1 Ultrasonic Oxygen Analyzer is a portable handheld tester designed for PSA oxygen concentrators and oxygen systems. It measures O₂ concentration, flow rate, and pressure with a clear backlit LCD display. With a 2000mAh rechargeable battery, data-hold function, dustproof design, and automatic power-off, it’s a practical tool for oxygen system testing and maintenance.
