This article applies to Ralston Field Gauge LC10, all models.

Things you will need: 

  • A PC running Windows. 
  • FieldLab Desktop software version 1.24 or later installed on your PC. Download the latest version for free.
  • A Ralston Instruments Field Gauge.
  • USB Cord, provided with your Field Gauge.

Download and install the latest version of FieldLab Desktop.

You will need FieldLab Desktop version 1.24 or later. Download the latest free version, here.


Open the FieldLab app on your PC.


Power on your Field Gauge and connect it to your PC with the provided USB Cord.


If you have not already done so, link the Field Gauge to FieldLab Desktop.

Learn how to link a Field Gauge to FieldLab Desktop here.


Sign in to your FieldLab account. If you don’t already have an account, create one on this screen.


Once you've signed in, go to the Devices screen, select (tap or click) the Field Gauge you want to register.

Select the device you wish to register to access its Overview and Settings.


On the Overview screen, select the button titled “Register”.


Review the registration information, and select the button titled "Register"

Congratulations! You can now access you calibration certificates for this device and install firmware updates.