Multi-Functional Detection: Simultaneously measures oxygen flow, concentration, and pressure, providing comprehensive gas analysis data. Portable Design: Compact dimensions (9620247mm) and (350g) for easy transport and on-site operation. Long-Lasting Power: Equipped with a 3.7V 2000mAh lithium battery for extended use, minimizing the need for frequent recharging. Professional Application: Specifically designed for PSA oxygen generators, suitable for medical and industrial oxygen monitoring to optimal device performance. User-Friendly: Features a straightforward interface for easy understanding and operation, catering to various user needs. Product Parameter: Flow Measurement Range: 0 to 10.0 L/min Flow Resolution: 0.1 L/min Flow Accuracy: 5% F.S (0.2 L/min) Concentration Range: 21% to 95.6% O2 Concentration Resolution: 0.1% Concentration Accuracy: 1.5% Pressure Range: 0-199 KPa Pressure Accuracy: 1% Battery: 3.7V 2000mAh Lithium Battery Dimensions: 96 x 202 x 47mm Color: Blue Material: plastic Package Contents: 1 x Portable Ultrasonic Oxygen Measuring Instrument Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.