Calibration

Thank you for visiting the GL412 and GL422 support area.

For servicing procedures, please contact your service center or Trimble support group at trimble_support@trimble.com or call:

In Americas: Phone # 1-800-767-4822 or 1-937-245-5514

In Europe, Middle East, Africa: Phone # +49-6142-2100-555

In Asia-Pacific: Phone: # +86-21-5046-4200