Manufacturer/
Description | Low Flow (mL/min.) | High Flow (mL/min.) | Accuracy | Gases Measured | Volumetric or Mass Flow Measured | Gas Exhaust | Data Port | List Price | Power Supply |
| Restek ProFLOW 6000 | 0.5 | 500 | ±2% of reading, or ±0.2mL/min., whichever is greater | Most* | Volumetric | Yes | USB | $698 | 2-AA |
| Agilent Precision Gas Flowmeter | 5 | 500 | ±0.8% | N2, H2, He, Air, CO2, CH4, 95% Ar/CH4 | Mass and volumetric | No | RS232 | $1,208 | 9 volt |
| Agilent ADM 1000 | 0.5 | 1,000 | ±3% of reading or ±0.2mL/min., whichever is greater | Most | Volumetric | No | RS232 | $698 | 9 volt or AC power supply |
| Agilent ADM 2000 | 0.5 | 1,000 | ±3% of reading or ±0.2mL/min., whichever is greater | Most | Volumetric with mass flow calculated | No | RS232 | $816 | 9 volt |
| Agilent ADM 3000 | 0.5 | 1,000 | ±3% of reading or ±0.2mL/min., whichever is greater | Most | Volumetric | No | RS232 | $1,045 | 9 volt |
| Alicat M Series | Five versions of flow | Five versions of flow | ±0.4% | 30 single and combo gases | Mass | No | RS232 | $975 | 9 volt |
| Humonics OptiFlow Bubble Flowmeter | 0.5 | 500 | ±3% | NA | Volumetric | No | NA | $725 | 9 volt |
