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# 9.1.4 Pressure Sensor Calibration

### “This calibration establishes the current pressure as the reference point for zero altitude.”

**Step 1**. Locate the '**PRESSURE**' section visible on your screen. This area will provide access to calibrating the Pressure Sensor, as shown in the screen below.

<figure><img src="/files/gzRZY1TqGbQN9rOOCmBj" alt=""><figcaption><p>Pressure Sensor</p></figcaption></figure>

**Step 2**. Click on the “**Calibrate**” button to start the calibration of pressure sensors. After completion of the calibration process, you will see the following screen.

<figure><img src="/files/hypbSF81GdnuhGnIGHKy" alt=""><figcaption><p>Pressure Sensor Calibration Complete</p></figcaption></figure>

By completing the pressure sensor calibration, you have now set the current pressure as the reference point for zero altitude, ensuring accurate measurements in your system.