SPC4™ 406a Digital Logger Mobile Application This new mobile application powered by VF Bolts and Manufacturing Co. was designed and developed by Dot Com Development (for VF Bolts) to connect with their SPC4™ 406A handheld meter via Bluetooth. Available on Phone and tablet, the mobile application receives and logs the tension data measured by the hand-held meter in real time as each bolt/joint is tested one by one. Once all bolts/joints are tested for the configuration, the logged data will be saved to the application/device locally and various table and chart reports will be able to be viewed digitally via the application. The application supports company management, contractor management (add/edit/delete), the ability to manage mill configurations, log test results and a history of the test results that can either be pulled up and reviewed as needed, exported to a CSV file, and/or deleted altogether.