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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.
Pressure Sensor
**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.
Pressure Sensor Calibration Complete
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.
