Description: 【Wide Application】: Ideal for use with household concentrators and oxygen generators, ensuring accurate gas flow measurement in various settings 【Material】: Constructed from quality pp and glass, this flow meter is lightweight, resistant, and designed for long performance 【Accurate Measurement】: Supports a working pressure of up to 0.6 MPa and operates efficiently within a temperature range of 0-65°C for reliable oxygen flow 【Compact Design】: Features a total length of 93mm with connector dimensions of 2.5cm/0.98inch (length), approximately 0.7cm/0.28inch (diameter), and about 7cm/2.76inch spacing between connectors for easy installation in tight spaces 【Package】: Comes with 1 -3 Oxygen Flow Meter (measuring range: 0-1000ML/MIN) equipped with sturdy connectors for immediate use Size Chart: 2.2cmx9.3cm/0.87inchx3.66inch connector length : 2.5cm/0.98inch connector diameter : 0.7cm/0.28inch connector spacing : 7cm/2.76inch Package Includes: 1 gas flow Meter  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.