# Zero Offset calibration

## Step 1. Navigate to the [Calibration](https://app.onegiantleap.co.nz/calibration) page of the Web Bluetooth app and connect to the power meter

![](https://2711382635-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LAFl-quJvXSIV-V8Y2Z%2F-M1S8dGPVEYo4H11XbmA%2F-M1SBvadDEu3bPn4YeTD%2Fimage.png?alt=media\&token=e22a5f1f-7e14-458d-8150-c39e5dd4ebe2)

## Step 2. Perform the Zero Offset Calibration 

* Make sure that the Power Meter is not experiencing any force when you perform the 'ZO' calibration. It's best practice to stand the paddle vertically by leaning it against a wall. This ensures that the shaft is experiencing as little bending as possible. 
* Click on "Zero Offset" for both the Left Shaft and the Right Shaft. The Zero Offsets will update automatically. 

![](https://2711382635-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LAFl-quJvXSIV-V8Y2Z%2F-M1S8dGPVEYo4H11XbmA%2F-M1SDCt2eQQA3aeh87DM%2Fimage.png?alt=media\&token=18fb4f36-4646-4986-b0c8-bb0e1cd1078e)