1. The "Software Update Instructions" PDF below has the instructions for the update.
   
   
2. The first instruction is to click on the "Software Update Tool" below in order to download the software update file. Click on "D450 Australia Software Download Tool 2.0 Vers 4 (new $5 $10 $20 $50).exe".
   
   
3. If the "D450 Australia Software Download Tool 2.0 Vers 4 (new $5 $10 $50).exe" does not open automatically, you will need to download windows WinRAR or WinZIP for free at this link: https://www.win-rar.com/download.html?&L=0 
   
   
4. Once the download file is open, follow the nine easy steps in the "Software Update Instructions" PDF to complete the software upgrade.

Note: If you have Norton Antivirus in your computer, follow the steps found in this PDF file (Norton Disable Auto-Protect) to avoid any problems while downloading the software update.

• User Guide
• Software Update Instructions
• Software Update Tool  *Note: New $5, $10, $20, and $50 AUD Software Update

• Worry-Free One Year Counter Maintenance Kit  
  
  
• Worry-Free Detector Maintenance Kit