This gas regulator contains non-gas equipment required for on-site calibration of the GS1440/GS2440EX sensor (measurement range 0 – 1000 ppm or 0 – 5 mg/L), including a flow regulator and a calibration cap.
| What’s included? | Includes non-gas equipment required for on-site calibration of the GS1440/GS2440EX sensor. Please note that the 1000 ppm H₂S calibration gas (LCX449) required for the sensor calibration must be purchased separately. |

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